Package gaiasky.script

Interface IScriptingInterface

All Known Implementing Classes:

EventScriptingInterface

public interface IScriptingInterface

Method Summary

Modifier and Type	Method	Description
void	activateRealTimeFrame()	Sets the current time frame to real time.
void	activateSimulationTimeFrame()	Sets the current time frame to simulation time.
void	addPolyline(String name, double[] points, double[] color)	Adds a new polyline with the given name, points and color.
void	addPolyline(String name, double[] points, double[] color, double lineWidth)	Adds a new polyline with the given name, points, color and line width.
void	addPolyline(String name, double[] points, double[] color, double lineWidth, boolean arrowCaps)	Adds a new polyline with the given name, points, color and line width.
void	addPolyline(String name, double[] points, double[] color, double lineWidth, int primitive)	Adds a new polyline with the given name, points, color, line width and primitive.
void	addPolyline(String name, double[] points, double[] color, double lineWidth, int primitive, boolean arrowCaps)	Adds a new polyline with the given name, points, color, line width, primitive and arrow caps.
void	addShapeAroundObject(String shapeName, String shape, String primitive, double size, String objectName, float r, float g, float b, float a, boolean showLabel, boolean trackObject)	Creates a shape object of the given type with the given size around the object with the given name.
void	addTrajectoryLine(String name, double[] points, double[] color)	Adds a new trajectory object with the given name, points and color.
void	addTrajectoryLine(String name, double[] points, double[] color, double trailMap)	Adds a new trajectory object with the given name, points and color.
void	cameraCenter()	Centers the camera to the focus, removing any deviation of the line of sight.
void	cameraForward(double value)	Adds a forward movement to the camera with the given value.
void	cameraPitch(double amount)	Adds a pitch to the camera.
void	cameraRoll(double roll)	Adds a roll force to the camera.
void	cameraRotate(double deltaX, double deltaY)	Adds a rotation movement to the camera around the current focus, or a pitch/yaw if in free mode.
void	cameraStop()	Stops all camera motion.
void	cameraTransition(double[] camPos, double[] camDir, double[] camUp, double seconds)	Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds.
void	cameraTransition(double[] camPos, double[] camDir, double[] camUp, double seconds, boolean sync)	Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds.
void	cameraTransition(double[] camPos, String units, double[] camDir, double[] camUp, double seconds)	Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds.
void	cameraTransition(double[] camPos, String units, double[] camDir, double[] camUp, double seconds, boolean sync)	Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds.
void	cameraTransitionKm(double[] camPos, double[] camDir, double[] camUp, double seconds)	Same as cameraTransition(double[], double[], double[], double) but the camera position is given in Km.
void	cameraTurn(double deltaX, double deltaY)	Adds a turn force to the camera (yaw and/or pitch).
void	cameraYaw(double amount)	Adds a yaw to the camera.
void	clearAllMessages()	Clears both the subhead and the headline messages.
void	clearHeadlineMessage()	Clears the headline message.
void	clearSubheadMessage()	Clears the subhead message.
void	collapseGuiComponent(String name)	Collapses the component with the given name.
void	configureFrameOutput(int width, int height, double fps, String directory, String namePrefix)	Configures the frame output system, setting the resolution of the images, the target frames per second, the output directory and the image name prefix.
void	configureFrameOutput(int width, int height, int fps, String directory, String namePrefix)	Configures the frame output system, setting the resolution of the images, the target frames per second, the output directory and the image name prefix.
void	configureRenderOutput(int width, int height, int fps, String directory, String namePrefix)	Deprecated. Use configureFrameOutput(int, int, int, String, String) instead.
void	configureScreenshots(int width, int height, String directory, String namePrefix)	Configures the screenshot system, setting the resolution of the images, the output directory and the image name prefix.
double[]	cross3(double[] vec1, double[] vec2)	Computes the cross product between the two 3D vectors.
void	disableGui()	Disables the GUI rendering.
void	disableInput()	Disables all input events from mouse, keyboard, touchscreen, etc.
void	displayImageObject(int id, String path, double x, double y, double[] color)	Same as displayImageObject(int, String, float, float, float, float, float, float) but using a double array for the color instead of each component separately.
void	displayImageObject(int id, String path, float x, float y)	Adds a new image object at the given coordinates.
void	displayImageObject(int id, String path, float x, float y, float r, float g, float b, float a)	Adds a new image object at the given coordinates.
void	displayMessageObject(int id, String message, double x, double y, double[] color, double fontSize)	Same as displayImageObject(int, String, float, float, float, float, float, float) but using an array for the color instead of giving each component separately.
void	displayMessageObject(int id, String message, float x, float y, float r, float g, float b, float a, float fontSize)	Adds a new one-line message in the screen with the given id and the given coordinates.
void	displayPopupNotification(String message)	Displays a popup notification on the screen for the default duration.
void	displayPopupNotification(String message, float duration)	Displays a popup notification on the screen for the given duration.
void	displayTextObject(int id, String text, float x, float y, float maxWidth, float maxHeight, float r, float g, float b, float a, float fontSize)	Adds a new multi-line text in the screen with the given id, coordinates and size.
double	dot3(double[] vec1, double[] vec2)	Computes the dot product between the two 3D vectors.
double[]	eclipticToEquatorial(double[] eclInternal)	Converts ecliptic cartesian coordinates (in the internal reference system) to equatorial cartesian coordinates.
double[]	eclipticToInternalCartesian(double l, double b, double r)	Converts ecliptic coordinates to the internal cartesian coordinate system.
void	enableGui()	Enables the GUI rendering.
void	enableInput()	Enables all input events.
double[]	equatorialCartesianToInternalCartesian(double[] eq, double kmFactor)	Converts regular cartesian coordinates, where XY is the equatorial plane, with X pointing to the vernal equinox (ra=0) and Y points to ra=90, and Z pointing to the celestial north pole (dec=90) to internal cartesian coordinates with internal units.
double[]	equatorialToEcliptic(double[] eqInternal)	Converts equatorial cartesian coordinates (in the internal reference system) to ecliptic cartesian coordinates.
double[]	equatorialToGalactic(double[] eq)	Converts equatorial cartesian coordinates (in the internal reference system) to galactic cartesian coordinates.
double[]	equatorialToInternalCartesian(double ra, double dec, double r)	Converts equatorial coordinates to the internal cartesian coordinate system.
void	error(String message)	Log an error using the internal logging system.
void	expandGuiComponent(String name)	Expands the component with the given name.
void	forceUpdateScene()	Forcefully triggers an update of the scene and the positions of all the objects.
double[]	galacticToEquatorial(double[] galInternal)	Converts galactic cartesian coordinates (in the internal reference system) to equatorial cartesian coordinates.
double[]	galacticToInternalCartesian(double l, double b, double r)	Converts galactic coordinates to the internal cartesian coordinate system.
String	getAssetsLocation()	Gets the location of the assets folder.
double[]	getCameraDirection()	Gets the current camera direction vector.
double[]	getCameraPosition()	Gets the current camera position, in km.
double[]	getCameraPosition(String units)	Gets the current camera position, in the requested units.
double	getCameraSpeed()	Gets the current physical speed of the camera in km/h.
double[]	getCameraUp()	Gets the current camera up vector.
IFocus	getClosestObjectToCamera()	Returns the closest object to the camera in this instant as a IFocus.
boolean	getComponentTypeVisibility(String key)	Gets the visibility of the component type described by the key.
String	getConfigDir()	Gets the absolute path to the location of the configuration directory
long	getCurrentFrameNumber()	Gets the current frame number.
String	getDataDir()	Gets the absolute path of the local data directory, configured in your config.yaml file.
String	getDefaultCameraDir()	Gets the absolute path of the default directory where the camera files are saved.
String	getDefaultFramesDir()	Gets the absolute path of the default directory where the still frames are saved.
String	getDefaultMappingsDir()	Gets the absolute path to the location of the inputListener mappings.
String	getDefaultMusicDir()	Gets the absolute path to the location of the music files
String	getDefaultScreenshotsDir()	Gets the absolute path of the default directory where the screenshots are saved.
double	getDistanceTo(String name)	Returns the distance to the surface of the object identified with the given name.
boolean	getForceDisplayLabel(String name)	Gets the value of the force display label flag for the object identified with the given name.
long	getFrameNumber()	Gets the current frame number.
double	getFrameOutputFps()	Gets the current FPS setting in the frame output system.
float	getGuiScaleFactor()	Gets the current scale factor applied to the UI.
double	getInternalUnitToMeterConversion()	Returns the internal unit to meter conversion factor.
VertsView	getLineObject(String name)	Gets a Verts object from the scene by name.
VertsView	getLineObject(String name, double timeoutSeconds)	Gets a Verts object from the scene by name.
String	getLocalDataDir()	Returns the default data directory.
double	getMeterToInternalUnitConversion()	Returns the meter to internal unit conversion factor.
FocusView	getObject(String name)	Gets an object from the scene graph by name or id (HIP, TYC, Gaia SourceId).
FocusView	getObject(String name, double timeoutSeconds)	Gets an object by name or id (HIP, TYC, Gaia SourceID), optionally waiting until the object is available, with a timeout.
double[]	getObjectPosition(String name)	Gets the current position of the object identified by name in the internal coordinate system and internal units.
double[]	getObjectPosition(String name, String units)	Gets the current position of the object identified by name in the internal coordinate system and the requested distance units.
double[]	getObjectPredictedPosition(String name)	Gets the predicted position of the object identified by name in the internal coordinate system and internal units.
double[]	getObjectPredictedPosition(String name, String units)	Gets the predicted position of the object identified by name in the internal coordinate system and the requested distance units.
double	getObjectRadius(String name)	Gets the size of the object identified by name, in Km, by name or id (HIP, TYC, sourceId).
boolean	getObjectVisibility(String name)	Gets the visibility of a particular object.
float[]	getPositionAndSizeGui(String name)	Returns the size and position of the GUI element that goes by the given name or null if such element does not exist.
long	getProperMotionsMaxNumber()	Returns the current maximum number of velocity vectors per star group.
double	getRenderOutputFps()	Deprecated. Use getFrameOutputFps() instead.
int	getScreenHeight()	Returns the screen height in pixels.
int	getScreenWidth()	Returns the screen width in pixels.
long	getSimulationTime()	Returns the current simulation time as the number of milliseconds since 1970-01-01T00:00:00Z (UTC).
int[]	getSimulationTimeArr()	Returns the current UTC simulation time in an array.
float	getStarBrightness()	Gets the star brightness value.
float	getStarMinOpacity()	Gets the minimum star opacity.
double[]	getStarParameters(String starId)	Returns the star parameters given its identifier or name, if the star exists and it is loaded.
float	getStarSize()	Gets the current star size value in pixels.
String	getVersionNumber()	Returns the version number string.
void	goToObject(String name)	Runs a seamless trip to the object with the name focusName until the object view angle is 20 degrees.
void	goToObject(String name, double solidAngle)	Runs a seamless trip to the object with the name focusName until the object view angle viewAngle is met.
void	goToObject(String name, double solidAngle, float waitTimeSeconds)	Runs a seamless trip to the object with the name focusName until the object view angle viewAngle is met.
void	goToObjectInstant(String name)	Sets the camera in focus mode with the given focus object and instantly moves the camera next to the focus object.
boolean	hasDataset(String dsName)	Checks whether the dataset identified by the given name is loaded
boolean	hideDataset(String dsName)	Hides the dataset identified by the given name, if it exists and is not hidden.
boolean	highlightDataset(String dsName, boolean highlight)	Enables or disables the dataset highlight using a plain color chosen by the system.
boolean	highlightDataset(String dsName, float r, float g, float b, float a, boolean highlight)	Enables or disables the dataset highlight, using a given plain color.
boolean	highlightDataset(String dsName, int colorIndex, boolean highlight)	Enables or disables the dataset highlight, using a plain color given by the color index: 0 - blue 1 - red 2 - yellow 3 - green 4 - pink 5 - orange 6 - purple 7 - brown 8 - magenta
boolean	highlightDataset(String dsName, String attributeName, String colorMap, double minMap, double maxMap, boolean highlight)	Enables or disables the dataset highlight, using the given color map on the given attribute with the given maximum and minimum mapping values.
double[]	internalCartesianToEquatorial(double x, double y, double z)	Converts internal cartesian coordinates to equatorial [ra, dec, distance] coordinates.
double	internalUnitsToKilometres(double internalUnits)	Converts the value in internal units to Kilometers.
double[]	internalUnitsToKilometres(double[] internalUnits)	Converts the array in internal units to Kilometers.
double	internalUnitsToMetres(double internalUnits)	Converts the value in internal units to metres.
double	internalUnitsToParsecs(double internalUnits)	Converts the value in internal units to parsecs.
double[]	internalUnitsToParsecs(double[] internalUnits)	Converts the array in internal units to parsecs.
boolean	isFrameOutputActive()	Is the frame output system on?
boolean	isRenderOutputActive()	Deprecated. Use isFrameOutputActive() instead.
boolean	isSimulationTimeOn()	Queries whether the time is on or not.
double	kilometresToInternalUnits(double kilometres)	Converts the kilometres to internal units.
void	landAtObjectLocation(String name, double longitude, double latitude)	Lands on the object with the given name, if it is a planet or moon, at the location specified in by [latitude, longitude], in degrees.
void	landAtObjectLocation(String name, String locationName)	Lands on the object with the given name, if it is a planet or moon, at the location with the given name, if it exists.
void	landOnObject(String name)	Lands on the object with the given name, if it is a planet or moon.
List<String>	listDatasets()	Returns the names of all datasets currently loaded.
boolean	loadDataset(String dsName, String path)	Loads a VOTable, FITS, CSV or JSON dataset file with the given name.
boolean	loadDataset(String dsName, String path, boolean sync)	Loads a VOTable, FITS, CSV or JSON dataset file with the given name.
boolean	loadDataset(String dsName, String path, CatalogInfo.CatalogInfoSource type, DatasetOptions options, boolean sync)	Loads a VOTable, FITS, CSV or JSON dataset file with the given name.
boolean	loadJsonCatalog(String dsName, String path)	Loads a Gaia Sky JSON dataset file asynchronously.
boolean	loadJsonDataset(String dsName, String path)	Loads a JSON Gaia Sky dataset file asynchronously.
boolean	loadJsonDataset(String dsName, String path, boolean sync)	Loads a Gaia Sky JSON dataset file in a synchronous or asynchronous manner.
boolean	loadParticleDataset(String dsName, String path, double profileDecay, double[] particleColor, double colorNoise, double[] labelColor, double particleSize, double[] particleSizeLimits, String ct, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a particle dataset (point cloud) from a VOTable, a CSV or a FITS file.
boolean	loadParticleDataset(String dsName, String path, double profileDecay, double[] particleColor, double colorNoise, double[] labelColor, double particleSize, String ct, boolean sync)	Loads a particle dataset (point cloud) from a VOTable, a CSV or a FITS file.
boolean	loadParticleDataset(String dsName, String path, double profileDecay, double[] particleColor, double colorNoise, double[] labelColor, double particleSize, String ct, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a particle dataset (point cloud) from a VOTable, a CSV or a FITS file.
boolean	loadStarClusterDataset(String dsName, String path, double[] particleColor, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a star cluster dataset from a CSV, VOTable or FITS file.
boolean	loadStarClusterDataset(String dsName, String path, double[] particleColor, double[] labelColor, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a star cluster dataset from a CSV, VOTable or FITS file.
boolean	loadStarClusterDataset(String dsName, String path, double[] particleColor, double[] labelColor, String ct, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a star cluster dataset from a CSV, VOTable or FITS file.
boolean	loadStarClusterDataset(String dsName, String path, double[] particleColor, String ct, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a star cluster dataset from a CSV, VOTable or FITS file.
boolean	loadStarDataset(String dsName, String path, boolean sync)	Loads a star dataset from a VOTable, a CSV or a FITS file.
boolean	loadStarDataset(String dsName, String path, double magnitudeScale, boolean sync)	Loads a star dataset from a VOTable, a CSV or a FITS file.
boolean	loadStarDataset(String dsName, String path, double magnitudeScale, double[] labelColor, boolean sync)	Loads a star dataset from a VOTable, a CSV or a FITS file.
boolean	loadStarDataset(String dsName, String path, double magnitudeScale, double[] labelColor, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a star dataset from a VOTable, a CSV or a FITS file.
boolean	loadVariableStarDataset(String dsName, String path, double magnitudeScale, double[] labelColor, double[] fadeIn, double[] fadeOut, boolean sync)	Loads a variable star dataset from a VOTable, CSV or FITS file.
void	log(String message)	Print text using the internal logging system.
void	maximizeInterfaceWindow()	Maximizes the interface window.
double	metresToInternalUnits(double metres)	Converts the metres to internal units.
void	minimizeInterfaceWindow()	Minimizes the interface window.
void	parkCameraRunnable(String id, Runnable runnable)	Parks a camera update Runnable to the main loop thread, and keeps it running every frame until it finishes or it is unparked by unparkRunnable(String).
void	parkRunnable(String id, Runnable runnable)	See parkSceneRunnable(String, Runnable).
void	parkSceneRunnable(String id, Runnable runnable)	Parks an update Runnable to the main loop thread, and keeps it running every frame until it finishes or it is unparked by unparkRunnable(String).
double	parsecsToInternalUnits(double parsecs)	Converts the parsecs to internal units.
void	playCameraPath(String file)	Alias for runCameraPath(String)
void	playCameraPath(String file, boolean sync)	Alias for runCameraPath(String, boolean)
void	pointAtSkyCoordinate(double ra, double dec)	Sets the camera in free mode and points it to the given coordinates in equatorial system.
void	postRunnable(Runnable runnable)	Posts a Runnable to the main loop thread that runs once after the update-scene stage, and before the render stage.
void	preloadTexture(String path)	Pre-loads the given image as a texture for later use.
void	preloadTextures(String[] paths)	Pre-loads the given images as textures for later use.
void	print(String message)	Print text using the internal logging system.
void	quit()	Initiates the quit action to terminate the program.
void	refreshAllOrbits()	Forces all orbits to refresh immediately.
void	refreshObjectOrbit(String name)	Forces the refresh of the orbit of the object identified by name.
void	removeAllObjects()	Removes all objects.
void	removeCameraTrackingObject()	Removes the tracking object from the camera, if any.
boolean	removeDataset(String dsName)	Removes the dataset identified by the given name, if it exists.
void	removeModelObject(String name)	Removes the model object identified by the given name from the internal scene graph model of Gaia Sky, if it exists.
void	removeObject(int id)	Removes the item with the given id.
void	removeObjectCoordinatesProvider(String name)	Removes the current coordinates provider from the object with the given name.
void	removeObjects(int[] ids)	Removes the items with the given ids.
void	removeRunnable(String id)	Removes the runnable with the given id, if any.
void	resetImageSequenceNumber()	Resets to zero the image sequence number used to generate the file names of the frame output images.
double[]	rotate2(double[] vector, double angle)	Rotates a 2D vector by the specified angle in degrees, counter-clockwise assuming that the y axis points up.
double[]	rotate3(double[] vector, double[] axis, double angle)	Rotates a 3D vector around the given axis by the specified angle in degrees.
void	runCameraPath(String file)	Runs a .gsc camera path file and returns immediately.
void	runCameraPath(String file, boolean sync)	Runs a .gsc camera path file and returns immediately.
void	runCameraRecording(String file)	Runs the camera recording file with the given path.
void	saveScreenshot()	Takes a screenshot of the current frame and saves it to the configured location (see configureScreenshots(int, int, String, String)).
void	setAmbientLight(float value)	Sets the ambient light to a certain value.
void	setBackBufferScale(float scale)	Sets the scaling factor for the back-buffer.
void	setBloom(float value)	Sets the strength value for the bloom effect.
void	setBrightnessLevel(double level)	Sets the brightness level of the render system.
void	setCameraCenterFocus(boolean centerFocus)	Whether to look for the focus constantly when in focus mode and center it in the view or whether the view must be free.
void	setCameraDirection(double[] dir)	Sets the camera direction vector to the given vector, in the internal reference system.
void	setCameraDirection(double[] direction, boolean immediate)	Sets the camera direction vector to the given vector, in the internal reference system.
void	setCameraFocus(String focusName)	Sets the camera in focus mode with the focus object that bears the given focusName.
void	setCameraFocus(String focusName, float waitTimeSeconds)	Sets the camera in focus mode with the focus object that bears the given focusName.
void	setCameraFocusInstant(String focusName)	Sets the camera in focus mode with the given focus object.
void	setCameraFocusInstantAndGo(String focusName)	Sets the camera in focus mode with the given focus object and instantly moves the camera next to the focus object.
void	setCameraFree()	Sets the camera in free mode.
void	setCameraLock(boolean lock)	Activates or deactivates the camera lock to the focus reference system when in focus mode.
void	setCameraOrientationLock(boolean lock)	Locks or unlocks the orientation of the camera to the focus object's rotation.
void	setCameraPosition(double[] position)	Sets the camera position to the given coordinates, in the internal reference system and kilometres.
void	setCameraPosition(double[] position, boolean immediate)	Sets the camera position to the given coordinates, in the internal reference system and kilometres.
void	setCameraPosition(double[] position, String units)	Sets the camera position to the given coordinates, in the internal reference system and the given units.
void	setCameraPosition(double[] position, String units, boolean immediate)	Sets the camera position to the given coordinates, in the internal reference system and in the requested units.
void	setCameraPosition(double x, double y, double z)	Component-wise version of setCameraPosition(double[]).
void	setCameraPosition(double x, double y, double z, boolean immediate)	Component-wise version of setCameraPosition(double[], boolean).
void	setCameraPosition(double x, double y, double z, String units)	Component-wise version of setCameraPosition(double[], String).
void	setCameraPosition(double x, double y, double z, String units, boolean immediate)	Component-wise version of setCameraPosition(double[], String, boolean).
void	setCameraPositionAndFocus(String focus, String other, double rotation, double solidAngle)	Sets the focus and instantly moves the camera to a point in the line defined by focus-other and rotated rotation degrees around focus using the camera up vector as a rotation axis.

Method Details

getAssetsLocation

String getAssetsLocation()

Gets the location of the assets folder.

preloadTextures

void preloadTextures(String[] paths)

Pre-loads the given images as textures for later use. They will be cached for the subsequent uses.

Parameters:

paths - The texture paths.

preloadTexture

void preloadTexture(String path)

Pre-loads the given image as a texture for later use. The texture will be cached for later use.

Parameters:

path - The path of the image file to preload.

activateRealTimeFrame

void activateRealTimeFrame()

Sets the current time frame to real time. All the commands executed after this command becomes active will be in the real time frame (clock ticks).

activateSimulationTimeFrame

void activateSimulationTimeFrame()

Sets the current time frame to simulation time. All the commands executed after this command becomes active will be in the simulation time frame (simulation clock in the app).

displayPopupNotification

void displayPopupNotification(String message)

Displays a popup notification on the screen for the default duration.

Parameters:

message - The message text.

displayPopupNotification

void displayPopupNotification(String message,
 float duration)

Displays a popup notification on the screen for the given duration.

Parameters:

message - The message text.

duration - The duration in seconds until the notification is removed.

setHeadlineMessage

void setHeadlineMessage(String headline)

Sets a headline message that will appear in a big font in the screen.

Parameters:

headline - The headline text.

setSubheadMessage

void setSubheadMessage(String subhead)

Sets a subhead message that will appear in a small font below the headline.

Parameters:

subhead - The subhead text.

clearHeadlineMessage

void clearHeadlineMessage()

Clears the headline message.

clearSubheadMessage

void clearSubheadMessage()

Clears the subhead message.

clearAllMessages

void clearAllMessages()

Clears both the subhead and the headline messages.

displayMessageObject

void displayMessageObject(int id,
 String message,
 float x,
 float y,
 float r,
 float g,
 float b,
 float a,
 float fontSize)

Adds a new one-line message in the screen with the given id and the given coordinates. If an object already exists with the given id, it is removed. However, if a message object already exists with the same id, its properties are updated. The messages placed with this method will not appear in the screenshots/frames in advanced mode. This is intended for running interactively only.

Parameters:

id - A unique identifier, used to identify this message when you want to remove it.

message - The string message, to be displayed in one line. But explicit newline breaks the line.

x - The x coordinate of the bottom-left corner, in [0,1] from left to right. This is not resolution-dependant.

y - The y coordinate of the bottom-left corner, in [0,1] from bottom to top. This is not resolution-dependant.

r - The red component of the color in [0,1].

g - The green component of the color in [0,1].

b - The blue component of the color in [0,1].

a - The alpha component of the color in [0,1].

fontSize - The size of the font. The system will use the existing font closest to the chosen size and scale it up or down to match the desired size. Scaling can cause artifacts, so to ensure the best font quality, stick to the existing sizes.

displayMessageObject

void displayMessageObject(int id,
 String message,
 double x,
 double y,
 double[] color,
 double fontSize)

Same as displayImageObject(int, String, float, float, float, float, float, float) but using an array for the color instead of giving each component separately.

Parameters:

id - A unique identifier, used to identify this message when you want to remove it.

message - The string message, to be displayed in one line. But explicit newline breaks the line.

x - The x coordinate of the bottom-left corner, in [0,1] from left to right. This is not resolution-dependant.

y - The y coordinate of the bottom-left corner, in [0,1] from bottom to top. This is not resolution-dependant.

color - The color as an array of RGBA (red, green, blue, alpha) values in [0,1].

fontSize - The size of the font. The system will use the existing font closest to the chosen size and scale it up or down to match the desired size. Scaling can cause artifacts, so to ensure the best font quality, stick to the existing sizes.

displayTextObject

void displayTextObject(int id,
 String text,
 float x,
 float y,
 float maxWidth,
 float maxHeight,
 float r,
 float g,
 float b,
 float a,
 float fontSize)

Adds a new multi-line text in the screen with the given id, coordinates and size. If an object already exists with the given id, it is removed. However, if a text object already exists with the same id, its properties are updated. The texts placed with this method will not appear in the screenshots/frames in advanced mode. This is intended for running interactively only.

Parameters:

id - A unique identifier, used to identify this message when you want to remove it.

text - The string message, to be displayed line-wrapped in the box defined by maxWidth and maxHeight. Explicit newline still breaks the line.

x - The x coordinate of the bottom-left corner, in [0,1] from left to right. This is not resolution-dependant.

y - The y coordinate of the bottom-left corner, in [0,1] from bottom to top. This is not resolution-dependant.

maxWidth - The maximum width in screen percentage [0,1]. Set to 0 to let the system decide.

maxHeight - The maximum height in screen percentage [0,1]. Set to 0 to let the system decide.

r - The red component of the color in [0,1].

g - The green component of the color in [0,1].

b - The blue component of the color in [0,1].

a - The alpha component of the color in [0,1].

fontSize - The size of the font. The system will use the existing font closest to the chosen size.

displayImageObject

void displayImageObject(int id,
 String path,
 float x,
 float y)

Adds a new image object at the given coordinates. If an object already exists with the given id, it is removed. However, if an image object already exists with the same id, its properties are updated.
The messages placed with this method will not appear in the screenshots/frames in advanced mode. This is intended for running interactively only.

Parameters:

id - A unique identifier, used to identify this message when you want to remove it.

path - The path to the image. It can either be an absolute path (not recommended) or a path relative to the Gaia Sky work directory.

x - The x coordinate of the bottom-left corner, in [0,1] from left to right. This is not resolution-dependant.

y - The y coordinate of the bottom-left corner, in [0,1] from bottom to top. This is not resolution-dependant.

displayImageObject

void displayImageObject(int id,
 String path,
 float x,
 float y,
 float r,
 float g,
 float b,
 float a)

Adds a new image object at the given coordinates. If an object already exists with the given id, it is removed. However, if an image object already exists with the same id, its properties are updated.
Warning: This method will only work in the asynchronous mode. Run the script with the "asynchronous" check box activated!

Parameters:

id - A unique identifier, used to identify this message when you want to remove it.

path - The path to the image. It can either be an absolute path (not recommended) or a path relative to the Gaia Sky work directory.

x - The x coordinate of the bottom-left corner, in [0,1] from left to right. This is not resolution-dependant.

y - The y coordinate of the bottom-left corner, in [0,1] from bottom to top. This is not resolution-dependant.

r - The red component of the color in [0,1].

g - The green component of the color in [0,1].

b - The blue component of the color in [0,1].

a - The alpha component of the color in [0,1].

displayImageObject

void displayImageObject(int id,
 String path,
 double x,
 double y,
 double[] color)

Same as displayImageObject(int, String, float, float, float, float, float, float) but using a double array for the color instead of each component separately.

Parameters:

id - A unique identifier, used to identify this message when you want to remove it.

path - The path to the image. It can either be an absolute path (not recommended) or a path relative to the Gaia Sky work directory.

x - The x coordinate of the bottom-left corner, in [0,1] from left to right. This is not resolution-dependant.

y - The y coordinate of the bottom-left corner, in [0,1] from bottom to top. This is not resolution-dependant.

color - The color as an array of RGBA (red, green, blue, alpha) values in [0,1].

removeAllObjects

void removeAllObjects()

Removes all objects.

removeObject

void removeObject(int id)

Removes the item with the given id.

Parameters:

id - Integer with the integer id of the object to remove.

removeObjects

void removeObjects(int[] ids)

Removes the items with the given ids. They can either messages, images or whatever else.

Parameters:

ids - Vector with the integer ids of the objects to remove

disableInput

void disableInput()

Disables all input events from mouse, keyboard, touchscreen, etc.

enableInput

void enableInput()

Enables all input events.

setCinematicCamera

void setCinematicCamera(boolean cinematic)

Enables or disables the cinematic camera mode.

Parameters:

cinematic - Whether to enable or disable the cinematic mode.

setCameraFocus

void setCameraFocus(String focusName)

Sets the camera in focus mode with the focus object that bears the given focusName. It returns immediately, so it does not wait for the camera direction to point to the focus.

Parameters:

focusName - The name of the new focus object.

setCameraFocus

void setCameraFocus(String focusName,
 float waitTimeSeconds)

Sets the camera in focus mode with the focus object that bears the given focusName. The amount of time to block and wait for the camera to face the focus can also be specified in waitTimeSeconds.

Parameters:

focusName - The name of the new focus object.

waitTimeSeconds - Maximum time in seconds to wait for the camera to face the focus. If negative, we wait indefinitely.

setCameraFocusInstant

void setCameraFocusInstant(String focusName)

Sets the camera in focus mode with the given focus object. It also instantly sets the camera direction vector to point towards the focus.

Parameters:

focusName - The name of the new focus object.

setCameraFocusInstantAndGo

void setCameraFocusInstantAndGo(String focusName)

Sets the camera in focus mode with the given focus object and instantly moves the camera next to the focus object.

Parameters:

focusName - The name of the new focus object.

setCameraLock

void setCameraLock(boolean lock)

Activates or deactivates the camera lock to the focus reference system when in focus mode.

Parameters:

lock - Activate or deactivate the lock.

setCameraCenterFocus

void setCameraCenterFocus(boolean centerFocus)

Whether to look for the focus constantly when in focus mode and center it in the view or whether the view must be free. Use True to center the focus (default behaviour) and False to set it to a free view.

Parameters:

centerFocus - Whether to center the focus or not.

setCameraOrientationLock

void setCameraOrientationLock(boolean lock)

Locks or unlocks the orientation of the camera to the focus object's rotation.

Parameters:

lock - Whether to lock or unlock the camera orientation to the focus.

setCameraFree

void setCameraFree()

Sets the camera in free mode.

setCameraPostion

@Deprecated
void setCameraPostion(double[] vec)

Deprecated.

Use setCameraPosition(double[]) instead.

Sets the camera position to the given coordinates, in Km, equatorial system.

Parameters:

vec - Vector of three components in internal coordinates and Km.

setCameraPosition

void setCameraPosition(double[] position,
 boolean immediate)

Sets the camera position to the given coordinates, in the internal reference system and kilometres. The immediate parameter enables setting the camera state immediately without waiting for the possible current update operation to finish. Set this to true if you run this function from within a parked runnable.

Parameters:

position - Vector of three components in internal coordinates and Km.

immediate - Whether to apply the changes immediately, or wait for the next frame.

setCameraPosition

void setCameraPosition(double[] position,
 String units,
 boolean immediate)

Sets the camera position to the given coordinates, in the internal reference system and in the requested units. The immediate parameter enables setting the camera state immediately without waiting for the possible current update operation to finish. Set this to true if you run this function from within a parked runnable.

Parameters:

position - Vector of three components in internal coordinates and the requested units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

immediate - Whether to apply the changes immediately, or wait for the next frame.

setCameraPosition

void setCameraPosition(double x,
 double y,
 double z)

Component-wise version of setCameraPosition(double[]).

setCameraPosition

void setCameraPosition(double x,
 double y,
 double z,
 String units)

Component-wise version of setCameraPosition(double[], String).

setCameraPosition

void setCameraPosition(double x,
 double y,
 double z,
 boolean immediate)

Component-wise version of setCameraPosition(double[], boolean).

setCameraPosition

void setCameraPosition(double x,
 double y,
 double z,
 String units,
 boolean immediate)

Component-wise version of setCameraPosition(double[], String, boolean).

getCameraPosition

double[] getCameraPosition()

Gets the current camera position, in km.

Returns:

The camera position coordinates in the internal reference system, in km.

getCameraPosition

double[] getCameraPosition(String units)

Gets the current camera position, in the requested units.

Parameters:

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

Returns:

The camera position coordinates in the internal reference system and in the requested units.

setCameraPosition

void setCameraPosition(double[] position)

Sets the camera position to the given coordinates, in the internal reference system and kilometres. The default behavior of this method posts a runnable to update the camera after the current frame. If you need to call this method from within a parked runnable, use setCameraPosition(double[], boolean), with the boolean set to true.

Parameters:

position - Vector of three components in internal coordinates and Km.

setCameraPosition

void setCameraPosition(double[] position,
 String units)

Sets the camera position to the given coordinates, in the internal reference system and the given units. The default behavior of this method posts a runnable to update the camera after the current frame. If you need to call this method from within a parked runnable, use setCameraPosition(double[], boolean), with the boolean set to true.

Parameters:

position - Vector of three components in internal coordinates and the given units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

setCameraDirection

void setCameraDirection(double[] direction,
 boolean immediate)

Sets the camera direction vector to the given vector, in the internal reference system. The immediate parameter enables setting the camera state immediately without waiting for the possible current update operation to finish. Set this to true if you run this function from within a parked runnable.

Parameters:

direction - The direction vector in the internal reference system.

immediate - Whether to apply the changes immediately, or wait for the next frame.

getCameraDirection

double[] getCameraDirection()

Gets the current camera direction vector.

Returns:

The camera direction vector in the internal reference system.

setCameraDirection

void setCameraDirection(double[] dir)

Sets the camera direction vector to the given vector, in the internal reference system. You can convert from spherical coordinates using equatorialCartesianToInternalCartesian(double[], double), galacticToInternalCartesian(double, double, double) and eclipticToInternalCartesian(double, double, double). The default behavior of this method posts a runnable to update the camera after the current frame. If you need to call this method from within a parked runnable, use setCameraDirection(double[], boolean), with the boolean set to true.

Parameters:

dir - The direction vector in equatorial cartesian coordinates.

setCameraUp

void setCameraUp(double[] up,
 boolean immediate)

Sets the camera up vector to the given vector, in the internal reference system. The immediate parameter enables setting the camera state immediately without waiting for the possible current update operation to finish. Set this to true if you run this function from within a parked runnable.

Parameters:

up - The up vector in equatorial coordinates.

immediate - Whether to apply the changes immediately, or wait for the next frame.

getCameraUp

double[] getCameraUp()

Gets the current camera up vector.

Returns:

The camera up vector in the internal reference system.

setCameraUp

void setCameraUp(double[] up)

Sets the camera up vector to the given vector, in the internal reference system. The default behavior of this method posts a runnable to update the camera after the current frame. If you need to call this method from within a parked runnable, use setCameraUp(double[], boolean), with the boolean set to true.

Parameters:

up - The up vector in equatorial coordinates.

setCameraPositionAndFocus

void setCameraPositionAndFocus(String focus,
 String other,
 double rotation,
 double solidAngle)

Sets the focus and instantly moves the camera to a point in the line defined by focus-other and rotated rotation degrees around focus using the camera up vector as a rotation axis.

Parameters:

focus - The name of the focus object.

other - The name of the other object, to the fine a line from this to focus. Usually a light source.

rotation - The rotation angle, in degrees.

solidAngle - The target solid angle which determines the distance, in degrees.

pointAtSkyCoordinate

void pointAtSkyCoordinate(double ra,
 double dec)

Sets the camera in free mode and points it to the given coordinates in equatorial system.

Parameters:

ra - Right ascension in degrees.

dec - Declination in degrees.

getCameraSpeed

double getCameraSpeed()

Gets the current physical speed of the camera in km/h.

Returns:

The current speed of the camera in km/h.

setCameraSpeed

void setCameraSpeed(float speed)

Changes the speed multiplier of the camera and its acceleration.

Parameters:

speed - The new speed, from 0 to 100.

setCameraRotationSpeed

void setCameraRotationSpeed(float speed)

Changes the speed of the camera when it rotates around a focus.

Parameters:

speed - The new rotation speed in [0,100]

setRotationCameraSpeed

@Deprecated
void setRotationCameraSpeed(float speed)

Deprecated.

Use setCameraRotationSpeed(float)

Changes the speed of the camera when it rotates around a focus.

Parameters:

speed - The new rotation speed in [0,100]

setCameraTurningSpeed

void setCameraTurningSpeed(float speed)

Changes the turning speed of the camera.

Parameters:

speed - The new turning speed, from 1 to 100.

setTurningCameraSpeed

@Deprecated
void setTurningCameraSpeed(float speed)

Deprecated.

Use setCameraTurningSpeed(float)

Changes the turning speed of the camera.

Parameters:

speed - The new turning speed, from 1 to 100.

setCameraSpeedLimit

void setCameraSpeedLimit(int index)

Sets the speed limit of the camera given an index. The index corresponds to the following:

• 0 - 1 Km/h
• 1 - 10 Km/h
• 2 - 100 Km/h
• 3 - 1000 Km/h
• 4 - 1 Km/s
• 5 - 10 Km/s
• 6 - 100 Km/s
• 7 - 1000 Km/s
• 8 - 0.01 c
• 9 - 0.1 c
• 10 - 0.5 c
• 11 - 0.8 c
• 12 - 0.9 c
• 13 - 0.99 c
• 14 - 0.99999 c
• 15 - 1 c
• 16 - 2 c
• 17 - 10 c
• 18 - 1e3 c
• 19 - 1 AU/s
• 20 - 10 AU/s
• 21 - 1000 AU/s
• 22 - 10000 AU/s
• 23 - 1 pc/s
• 24 - 2 pc/s
• 25 - 10 pc/s
• 26 - 1000 pc/s
• 27 - unlimited

Parameters:

index - The index of the top speed.

setCameraTrackingObject

void setCameraTrackingObject(String objectName)

Sets the camera to track the object with the given name. In this mode, the position of the camera is still dependent on the focus object (if any), but its direction points to the tracking object.

Parameters:

objectName - The name of the new tracking object.

removeCameraTrackingObject

void removeCameraTrackingObject()

Removes the tracking object from the camera, if any.

cameraForward

void cameraForward(double value)

Adds a forward movement to the camera with the given value. If value is negative the movement is backwards.

Parameters:

value - The magnitude of the movement, between -1 and 1.

cameraRotate

void cameraRotate(double deltaX,
 double deltaY)

Adds a rotation movement to the camera around the current focus, or a pitch/yaw if in free mode.

If the camera is not using the cinematic behaviour (setCinematicCamera(boolean), the rotation movement will not be permanent. Use the cinematic behaviour to have the camera continue to rotate around the focus.

Parameters:

deltaX - The x component, between 0 and 1. Positive is right and negative is left.

deltaY - The y component, between 0 and 1. Positive is up and negative is down.

cameraRoll

void cameraRoll(double roll)

Adds a roll force to the camera.

Parameters:

roll - The intensity of the roll.

cameraTurn

void cameraTurn(double deltaX,
 double deltaY)

Adds a turn force to the camera (yaw and/or pitch). If the camera is in focus mode, it permanently deviates the line of sight from the focus until centered again. If the camera is not using the cinematic behaviour (setCinematicCamera(boolean), the turn will not be permanent. Use the cinematic behaviour to have the turn persist in time.

Parameters:

deltaX - The x component, between 0 and 1. Positive is right and negative is left.

deltaY - The y component, between 0 and 1. Positive is up and negative is down.

cameraYaw

void cameraYaw(double amount)

Adds a yaw to the camera. Same as cameraTurn(double, double) with deltaY set to zero.

Parameters:

amount - The amount.

cameraPitch

void cameraPitch(double amount)

Adds a pitch to the camera. Same as cameraTurn(double, double) with deltaX set to zero.

Parameters:

amount - The amount.

cameraStop

void cameraStop()

Stops all camera motion.

cameraCenter

void cameraCenter()

Centers the camera to the focus, removing any deviation of the line of sight. Useful to center the focus object again after turning.

getClosestObjectToCamera

IFocus getClosestObjectToCamera()

Returns the closest object to the camera in this instant as a IFocus.

Returns:

The closest object to the camera.

setFov

void setFov(float newFov)

Changes the field of view of the camera.

Parameters:

newFov - The new field of view value in degrees, between Constants.MIN_FOV and Constants.MAX_FOV.

setCameraState

void setCameraState(double[] pos,
 double[] dir,
 double[] up)

Sets the camera state (position, direction and up vector).

Parameters:

pos - The position of the camera in internal units, not Km.

dir - The direction of the camera.

up - The up vector of the camera.

setCameraStateAndTime

void setCameraStateAndTime(double[] pos,
 double[] dir,
 double[] up,
 long time)

Sets the camera state (position, direction and up vector) plus the current time.

Parameters:

pos - The position of the camera in internal units, not Km.

dir - The direction of the camera.

up - The up vector of the camera.

time - The new time of the camera as the number of milliseconds since the epoch (Jan 1, 1970).

setVisibility

@Deprecated
void setVisibility(String key,
 boolean visible)

Deprecated.

See setComponentTypeVisibility(String, boolean).

setComponentTypeVisibility

void setComponentTypeVisibility(String key,
 boolean visible)

Sets the component described by the given name visible or invisible.

Parameters:

key - The key of the component: "element.stars", "element.planets", "element.moons", etc. See ComponentTypes.ComponentType.

visible - The visible value.

getComponentTypeVisibility

boolean getComponentTypeVisibility(String key)

Gets the visibility of the component type described by the key. Examples of keys are "element.stars", "element.planets" or "element.moons". See ComponentTypes.ComponentType.

Parameters:

key - The key of the component type to query.

Returns:

The visibility of the component type.

setObjectVisibility

boolean setObjectVisibility(String name,
 boolean visible)

Sets the visibility of a particular object. Use this method to hide individual objects. Changes to the individual object visibility are not persisted on restart.

Parameters:

name - The name of the object. Must be an instance of IVisibilitySwitch.

visible - The visible status to set. Set to false in order to hide the object. True to make it visible.

Returns:

True if the visibility was set successfully, false if there were errors.

getObjectVisibility

boolean getObjectVisibility(String name)

Gets the visibility of a particular object.

Parameters:

name - The name of the object. Must be an instance of IVisibilitySwitch.

Returns:

The visibility status of the object, if it exists.

setLabelSizeFactor

void setLabelSizeFactor(float factor)

Sets the label size factor. The label size will be multiplied by this.

Parameters:

factor - Factor in Constants.MIN_LABEL_SIZE and Constants.MAX_LABEL_SIZE.

setForceDisplayLabel

void setForceDisplayLabel(String name,
 boolean forceLabel)

Forces the label to display for the given object, bypassing the solid angle requirements that are usually in place and determine label visibility. This setting does not override the visibility of the object itself, or of the label visibility component element. Changes to the force display label flag are not persisted on restart.

Parameters:

name - The object name.

forceLabel - Whether to force the label to render for this object or not.

setLabelColor

void setLabelColor(String name,
 double[] color)

Sets the label color of the object identified by the given name. The label color must be an array of RGBA values in [0,1].

Parameters:

name - The object name.

color - The label color as an array of RGBA (red, green, blue, alpha) values in [0,1].

getForceDisplayLabel

boolean getForceDisplayLabel(String name)

Gets the value of the force display label flag for the object identified with the given name.

Parameters:

name - The name of the object.

Returns:

The value of the force display label flag of the object, if it exists.

setLineWidthFactor

void setLineWidthFactor(float factor)

Sets the line width factor. The line width will be multiplied by this.

Parameters:

factor - Factor in Constants.MIN_LINE_WIDTH and Constants.MAX_LINE_WIDTH.

setProperMotionsNumberFactor

void setProperMotionsNumberFactor(float factor)

Sets the number factor of proper motion vectors that are visible. In [1,100].

Parameters:

factor - Factor in [1,100].

setProperMotionsLengthFactor

void setProperMotionsLengthFactor(float factor)

Sets the length of the proper motion vectors, in [500,30000].

Parameters:

factor - Factor in [500,30000].

setProperMotionsColorMode

void setProperMotionsColorMode(int mode)

Sets the color mode of proper motion vectors.

Parameters:

mode - The color mode:

• 0 - direction: the normalised cartesian velocity components XYZ are mapped to the color channels RGB.
• 1 - magnitude (speed): the magnitude of the velocity vector is mapped using a rainbow scheme (blue-green-yellow-red) with the color map limit at 100 Km/s.
• 2 - has radial velocity: blue for stars with radial velocity, red for stars without.
• 3 - redshift from Sun: blue stars have negative radial velocity (from the Sun), red stars have positive radial velocity (from the Sun). Blue is mapped to -100 Km/s, red is mapped to 100 Km/s.
• 4 - redshift from camera: blue stars have negative radial velocity (from the camera), red stars have positive radial velocity (from the camera). Blue is mapped to -100 Km/s, red is mapped to 100 Km/s.
• 5 - single color: same color for all velocity vectors.

setProperMotionsArrowheads

void setProperMotionsArrowheads(boolean arrowheadsEnabled)

Sets whether to show arrowheads or not for the velocity vectors.

Parameters:

arrowheadsEnabled - Whether to show the velocity vectors with arrowheads.

getProperMotionsMaxNumber

long getProperMotionsMaxNumber()

Returns the current maximum number of velocity vectors per star group.

Returns:

Max number of velocity vectors per star group.

setProperMotionsMaxNumber

void setProperMotionsMaxNumber(long maxNumber)

Sets the maximum number of proper motion vectors to add per star group.

Parameters:

maxNumber - The maximum number of proper motion vectors per star group.

setCrosshairVisibility

void setCrosshairVisibility(boolean visible)

Sets the visibility of all cross-hairs.

Parameters:

visible - The visibility state, which applies to all cross-hairs.

setFocusCrosshairVisibility

void setFocusCrosshairVisibility(boolean visible)

Sets the visibility of the focus object crosshair.

Parameters:

visible - The visibility state.

setClosestCrosshairVisibility

void setClosestCrosshairVisibility(boolean visible)

Sets the visibility of the closest object crosshair.

Parameters:

visible - The visibility state.

setHomeCrosshairVisibility

void setHomeCrosshairVisibility(boolean visible)

Sets the visibility of the home object crosshair.

Parameters:

visible - The visibility state.

setMinimapVisibility

void setMinimapVisibility(boolean visible)

Shows or hides the minimap.

Parameters:

visible - The visibility state.

setAmbientLight

void setAmbientLight(float value)

Sets the ambient light to a certain value.

Parameters:

value - The value of the ambient light in [0,1].

setSimulationTime

void setSimulationTime(int year,
 int month,
 int day,
 int hour,
 int min,
 int sec,
 int millisec)

Sets the time of the application, in UTC.

Parameters:

year - The year to represent.

month - The month-of-year to represent, from 1 (January) to 12 (December).

day - The day-of-month to represent, from 1 to 31.

hour - The hour-of-day to represent, from 0 to 23.

min - The minute-of-hour to represent, from 0 to 59.

sec - The second-of-minute to represent, from 0 to 59.

millisec - The millisecond-of-second, from 0 to 999.

getSimulationTime

long getSimulationTime()

Returns the current simulation time as the number of milliseconds since 1970-01-01T00:00:00Z (UTC).

Returns:

Number of milliseconds since the epoch (Jan 1, 1970 00:00:00 UTC).

setSimulationTime

void setSimulationTime(long time)

Sets the time of the application. The long value represents specified number of milliseconds since the standard base time known as "the epoch", namely January 1, 1970, 00:00:00 GMT.

Parameters:

time - Number of milliseconds since the epoch (Jan 1, 1970).

getSimulationTimeArr

int[] getSimulationTimeArr()

Returns the current UTC simulation time in an array.

Returns:

The current simulation time in an array with the given indices.

• 0 - The year.
• 1 - The month, from 1 (January) to 12 (December).
• 2 - The day-of-month, from 1 to 31.
• 3 - The hour-of-day, from 0 to 23.
• 4 - The minute-of-hour, from 0 to 59.
• 5 - The second-of-minute, from 0 to 59.
• 6 - The millisecond-of-second, from 0 to 999.

startSimulationTime

void startSimulationTime()

Starts the simulation.

stopSimulationTime

void stopSimulationTime()

Stops the simulation time.

isSimulationTimeOn

boolean isSimulationTimeOn()

Queries whether the time is on or not.

Returns:

True if the time is on, false otherwise.

setSimulationPace

@Deprecated
void setSimulationPace(double pace)

Deprecated.

Deprecated, use setTimeWarp(double) instead.

setTimeWarp

void setTimeWarp(double warpFactor)

Sets the simulation time warp factor. Positive values make time advance forward, while negative values make time run backwards. A warp factor of 1 sets a real time pace to the simulation time.

Parameters:

warpFactor - The warp as a factor. A value of 2.0 sets the Gaia Sky time to be twice as fast as real world time.

setTargetTime

void setTargetTime(long ms)

Sets a time bookmark in the global clock that, when reached, the clock automatically stops.

Parameters:

ms - The time as the number of milliseconds since the epoch (Jan 1, 1970).

setTargetTime

void setTargetTime(int year,
 int month,
 int day,
 int hour,
 int min,
 int sec,
 int milliSec)

Sets a time bookmark in the global clock that, when reached, the clock automatically stops.

Parameters:

year - The year to represent.

month - The month-of-year to represent, from 1 (January) to 12 (December).

day - The day-of-month to represent, from 1 to 31.

hour - The hour-of-day to represent, from 0 to 23.

min - The minute-of-hour to represent, from 0 to 59.

sec - The second-of-minute to represent, from 0 to 59.

milliSec - The millisecond-of-second, from 0 to 999.

unsetTargetTime

void unsetTargetTime()

Unsets the target time bookmark from the global clock, if any.

getStarBrightness

float getStarBrightness()

Gets the star brightness value.

Returns:

The brightness value, between 0 and 100.

setStarBrightness

void setStarBrightness(float brightness)

Sets the star brightness value.

Parameters:

brightness - The brightness value, between 0 and 100.

setStarBrightnessPower

void setStarBrightnessPower(float power)

Sets the star brightness power profile value. This allows for adjusting the shape of the curve: brightness = brightness^power. Default value is 0.6.

Parameters:

power - The power value.

setStarGlowFactor

void setStarGlowFactor(float glowFactor)

Sets the star glow factor level value. This controls the amount of glow light when the camera is close to stars. Must be between Constants.MIN_STAR_GLOW_FACTOR and Constants.MAX_STAR_GLOW_FACTOR. Default is 0.06.

Parameters:

glowFactor - The new glow factor value.

getStarSize

float getStarSize()

Gets the current star size value in pixels.

Returns:

The size value, in pixels.

setStarSize

void setStarSize(float size)

Sets the size of the rasterized stars, in pixels.

Parameters:

size - The size value in pixels, between Constants.MIN_STAR_POINT_SIZE and Constants.MAX_STAR_POINT_SIZE.

getStarMinOpacity

float getStarMinOpacity()

Gets the minimum star opacity.

Returns:

The minimum opacity value.

setStarMinOpacity

void setStarMinOpacity(float opacity)

Sets the minimum star opacity.

Parameters:

opacity - The minimum opacity value, between Constants.MIN_STAR_MIN_OPACITY and Constants.MAX_STAR_MIN_OPACITY.

setStarTextureIndex

void setStarTextureIndex(int index)

Sets the star texture index, in [1, 4]

1 - horizontal spike 2 - god rays 3 - horizontal and vertical spikes 4 - simple radial profile

Parameters:

index - The new star texture index

setStarGroupNearestNumber

void setStarGroupNearestNumber(int n)

Sets the number of nearest stars to be processed for each star group. This will limit the number of stars that are rendered with billboards, labels and velocity vectors.

Parameters:

n - The new number of nearest stars

setStarGroupBillboard

void setStarGroupBillboard(boolean flag)

Enable or disable the rendering of close stars as billboards.

Parameters:

flag - The state flag

setOrbitSolidAngleThreshold

void setOrbitSolidAngleThreshold(float angleDeg)

Sets the solid angle below which orbits fade and disappear.

Parameters:

angleDeg - The threshold angle in degrees

setProjectionYaw

void setProjectionYaw(float yaw)

Sets the projection yaw angle (if this is a slave instance), in degrees. The yaw angle turns the camera to the right. This function is intended for multi-projector setups, to configure slaves without restarting Gaia Sky.

Parameters:

yaw - The yaw angle in degrees.

setProjectionPitch

void setProjectionPitch(float pitch)

Sets the projection pitch angle (if this is a slave instance), in degrees. The pitch angle turns the camera up. This function is intended for multi-projector setups, to configure slaves without restarting Gaia Sky.

Parameters:

pitch - The pitch angle in degrees.

setProjectionRoll

void setProjectionRoll(float roll)

Sets the projection roll angle (if this is a slave instance), in degrees. The roll angle rolls the camera clockwise. This function is intended for multi-projector setups, to configure slaves without restarting Gaia Sky.

Parameters:

roll - The roll angle in degrees.

setProjectionFov

void setProjectionFov(float fov)

Same as setFov(float), but bypassing the restriction of an active projection in the slave (slaves that have an active projection do not accept fov modification events).

Parameters:

fov - The field of view angle.

setLimitFps

void setLimitFps(double limitFps)

Limits the frame rate of Gaia Sky.

Parameters:

limitFps - The new maximum frame rate as a double-precision floating point number. Set zero or negative to unlimited.

setLimitFps

void setLimitFps(int limitFps)

Limits the frame rate of Gaia Sky.

Parameters:

limitFps - The new maximum frame rate as an integer number. Set zero or negative to unlimited.

configureScreenshots

void configureScreenshots(int width,
 int height,
 String directory,
 String namePrefix)

Configures the screenshot system, setting the resolution of the images, the output directory and the image name prefix.

Parameters:

width - Width of images.

height - Height of images.

directory - The output directory path.

namePrefix - The file name prefix.

setScreenshotsMode

void setScreenshotsMode(String screenshotMode)

Sets the screenshot mode. Possible values are 'simple' and 'advanced'. The simple mode is faster and just outputs the last frame rendered to the Gaia Sky window, with the same resolution and containing the UI elements. The advanced mode redraws the last frame using the resolution configured using configureScreenshots(int, int, String, String) and it does not draw the UI.

Parameters:

screenshotMode - The screenshot mode. 'simple' or 'advanced'.

saveScreenshot

void saveScreenshot()

Takes a screenshot of the current frame and saves it to the configured location (see configureScreenshots(int, int, String, String)).

takeScreenshot

void takeScreenshot()

Alias to saveScreenshot().

configureRenderOutput

@Deprecated
void configureRenderOutput(int width,
 int height,
 int fps,
 String directory,
 String namePrefix)

Deprecated.

Use configureFrameOutput(int, int, int, String, String) instead.

Configures the frame output system, setting the resolution of the images, the target frames per second, the output directory and the image name prefix.

Parameters:

width - Width of images.

height - Height of images.

fps - Target frames per second (number of images per second).

directory - The output directory path.

namePrefix - The file name prefix.

configureFrameOutput

void configureFrameOutput(int width,
 int height,
 int fps,
 String directory,
 String namePrefix)

Configures the frame output system, setting the resolution of the images, the target frames per second, the output directory and the image name prefix. This function sets the frame output mode to 'advanced'.

Parameters:

width - Width of images.

height - Height of images.

fps - Target frames per second (number of images per second).

directory - The output directory path.

namePrefix - The file name prefix.

configureFrameOutput

void configureFrameOutput(int width,
 int height,
 double fps,
 String directory,
 String namePrefix)

Configures the frame output system, setting the resolution of the images, the target frames per second, the output directory and the image name prefix. This function sets the frame output mode to 'advanced'.

Parameters:

width - Width of images.

height - Height of images.

fps - Target frames per second (number of images per second).

directory - The output directory path.

namePrefix - The file name prefix.

setFrameOutputMode

void setFrameOutputMode(String screenshotMode)

Sets the frame output mode. Possible values are 'simple' and 'advanced'. The simple mode is faster and just outputs the last frame rendered to the Gaia Sky window, with the same resolution and containing the UI elements. The advanced mode redraws the last frame using the resolution configured using configureFrameOutput(int, int, int, String, String) and it does not draw the UI.

Parameters:

screenshotMode - The screenshot mode. 'simple' or 'advanced'.

isRenderOutputActive

@Deprecated
boolean isRenderOutputActive()

Deprecated.

Use isFrameOutputActive() instead.

Is the frame output system on?

Returns:

True if the frame output is active.

isFrameOutputActive

boolean isFrameOutputActive()

Is the frame output system on?

Returns:

True if the render output is active.

getRenderOutputFps

@Deprecated
double getRenderOutputFps()

Deprecated.

Use getFrameOutputFps() instead.

Gets the current FPS setting in the frame output system.

Returns:

The FPS setting.

getFrameOutputFps

double getFrameOutputFps()

Gets the current FPS setting in the frame output system.

Returns:

The FPS setting.

setFrameOutput

void setFrameOutput(boolean active)

Activates or deactivates the image output system. If called with true, the system starts outputting images right away.

Parameters:

active - Whether to activate or deactivate the frame output system.

getObject

FocusView getObject(String name)

Gets an object from the scene graph by name or id (HIP, TYC, Gaia SourceId).

Parameters:

name - The name or id (HIP, TYC, Gaia SourceId) of the object.

Returns:

The object as a FocusView, or null if it does not exist.

getObject

FocusView getObject(String name,
 double timeoutSeconds)

Gets an object by name or id (HIP, TYC, Gaia SourceID), optionally waiting until the object is available, with a timeout.

Parameters:

name - The name or id (HIP, TYC, Gaia SourceId) of the object.

timeoutSeconds - The timeout in seconds to wait until returning. If negative, it waits indefinitely.

Returns:

The object if it exists, or null if it does not and block is false, or if block is true and the timeout has passed.

getLineObject

VertsView getLineObject(String name)

Gets a Verts object from the scene by name.

Parameters:

name - The name of the line object.

Returns:

The line object as a VertsView, or null if it does not exist.

getLineObject

VertsView getLineObject(String name,
 double timeoutSeconds)

Gets a Verts object from the scene by name.

Parameters:

name - The name of the line object.

timeoutSeconds - The timeout in seconds to wait until returning. If negative, it waits indefinitely.

Returns:

The line object as a VertsView, or null if it does not exist.

setObjectSizeScaling

void setObjectSizeScaling(String name,
 double scalingFactor)

Sets the given size scaling factor to the object identified by name. This method will only work with model objects such as planets, asteroids, satellites, etc. It will not work with orbits, stars or any other types.

Also, use this with caution, as scaling the size of objects can have unintended side effects, and remember to set the scaling back to 1.0 at the end of your script.

Parameters:

name - The name or id of the object.

scalingFactor - The scaling factor to scale the size of that object.

setOrbitCoordinatesScaling

void setOrbitCoordinatesScaling(String name,
 double scalingFactor)

Sets the given orbit coordinates scaling factor to the AbstractOrbitCoordinates identified by name. See AbstractOrbitCoordinates and its subclasses.

Also, use this with caution, as scaling coordinates may have unintended side effects, and remember to set the scaling back to 1.0 at the end of your script. Additionally, use either refreshAllOrbits() or refreshObjectOrbit(String) right after this call in order to immediately refresh the scaled orbits.

Parameters:

name - The name of the coordinates object (OrbitLintCoordinates, EclipticCoordinates, SaturnVSOP87, UranusVSOP87, EarthVSOP87, MercuryVSOP87, ..., PlutoCoordinates, HeliotropicOribtCoordinates, MoonAACoordinates). Optionally, you can append ':objectName' to select a single object. For instance, both Gaia and JWST have heliotropic orbit coordinates. To only select the Gaia orbit provider, use "HeliotropicOrbitCoordinates:Gaia".

scalingFactor - The scaling factor.

refreshObjectOrbit

void refreshObjectOrbit(String name)

Forces the refresh of the orbit of the object identified by name. This should generally be called after a call to setOrbitCoordinatesScaling(String, double).

refreshAllOrbits

void refreshAllOrbits()

Forces all orbits to refresh immediately.

forceUpdateScene

void forceUpdateScene()

Forcefully triggers an update of the scene and the positions of all the objects. Useful to call after operations that modify the position of objects.

getObjectRadius

double getObjectRadius(String name)

Gets the size of the object identified by name, in Km, by name or id (HIP, TYC, sourceId).

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

Returns:

The radius of the object in Km. If the object identified by name or id (HIP, TYC, sourceId). does not exist, it returns a negative value.

goToObject

void goToObject(String name)

Runs a seamless trip to the object with the name focusName until the object view angle is 20 degrees.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

goToObject

void goToObject(String name,
 double solidAngle)

Runs a seamless trip to the object with the name focusName until the object view angle viewAngle is met. If angle is negative, the default angle is 20 degrees.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

solidAngle - The target solid angle of the object, in degrees. The angle gets larger and larger as we approach the object.

goToObject

void goToObject(String name,
 double solidAngle,
 float waitTimeSeconds)

Runs a seamless trip to the object with the name focusName until the object view angle viewAngle is met. If angle is negative, the default angle is 20 degrees. If waitTimeSeconds is positive, it indicates the number of seconds to wait (block the function) for the camera to face the focus before starting the forward movement. This very much depends on the turn velocity of the camera. See setTurningCameraSpeed(float).

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

solidAngle - The target solid angle of the object, in degrees. The angle gets larger and larger as we approach the object.

waitTimeSeconds - The seconds to wait for the camera direction vector and the vector from the camera position to the target object to be aligned.

goToObjectInstant

void goToObjectInstant(String name)

Sets the camera in focus mode with the given focus object and instantly moves the camera next to the focus object.

Parameters:

name - The name of the new focus object.

landOnObject

void landOnObject(String name)

Lands on the object with the given name, if it is a planet or moon. The land location is determined by the line of sight from the current position of the camera to the object.

Parameters:

name - The proper name of the object.

landAtObjectLocation

void landAtObjectLocation(String name,
 String locationName)

Lands on the object with the given name, if it is a planet or moon, at the location with the given name, if it exists.

Parameters:

name - The proper name of the object.

locationName - The name of the location to land on

landAtObjectLocation

void landAtObjectLocation(String name,
 double longitude,
 double latitude)

Lands on the object with the given name, if it is a planet or moon, at the location specified in by [latitude, longitude], in degrees.

Parameters:

name - The proper name of the object.

longitude - The location longitude, in degrees.

latitude - The location latitude, in degrees.

getDistanceTo

double getDistanceTo(String name)

Returns the distance to the surface of the object identified with the given name. If the object is an abstract node or does not exist, it returns a negative distance.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

Returns:

The distance to the object in km if it exists, a negative value otherwise.

getStarParameters

double[] getStarParameters(String starId)

Returns the star parameters given its identifier or name, if the star exists and it is loaded.

Parameters:

starId - The star identifier or name.

Returns:

An array with (ra [deg], dec [deg], parallax [mas], pmra [mas/yr], pmdec [mas/yr], radvel [km/s], appmag [mag], red [0,1], green [0,1], blue [0,1]) if the star exists and is loaded, null otherwise.

getObjectPosition

double[] getObjectPosition(String name)

Gets the current position of the object identified by name in the internal coordinate system and internal units. If the object does not exist, it returns null.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

Returns:

A 3-vector with the object's position in internal units and the internal reference system.

getObjectPosition

double[] getObjectPosition(String name,
 String units)

Gets the current position of the object identified by name in the internal coordinate system and the requested distance units. If the object does not exist, it returns null.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

Returns:

A 3-vector with the object's position in the requested units and internal reference system.

getObjectPredictedPosition

double[] getObjectPredictedPosition(String name)

Gets the predicted position of the object identified by name in the internal coordinate system and internal units. If the object does not exist, it returns null. The predicted position is the position of the object in the next update cycle, and may be useful to compute the camera state.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

Returns:

A 3-vector with the object's predicted position in the internal reference system.

getObjectPredictedPosition

double[] getObjectPredictedPosition(String name,
 String units)

Gets the predicted position of the object identified by name in the internal coordinate system and the requested distance units. If the object does not exist, it returns null. The predicted position is the position of the object in the next update cycle, and may be useful to compute the camera state.

Parameters:

name - The name or id (HIP, TYC, sourceId) of the object.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

Returns:

A 3-vector with the object's predicted position in the requested units and in the internal reference system.

setObjectPosition

void setObjectPosition(String name,
 double[] position)

Sets the internal position of the object identified by name. Note that depending on the object type, the position may be already calculated and set elsewhere in the update stage, so use with care.

Parameters:

name - The name of the object.

position - The position in the internal reference system and internal units.

setObjectPosition

void setObjectPosition(String name,
 double[] position,
 String units)

Sets the internal position of the object identified by name. Note that depending on the object type, the position may be already calculated and set elsewhere in the update stage, so use with care.

Parameters:

name - The name of the object.

position - The position in the internal reference system and the given units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

setObjectPosition

void setObjectPosition(FocusView object,
 double[] position)

Sets the internal position of the given entity object. Note that depending on the object type, the position may be already calculated and set elsewhere in the update stage, so use with care.

Parameters:

object - The object in a focus view wrapper.

position - The position in the internal reference system and internal units.

setObjectPosition

void setObjectPosition(FocusView object,
 double[] position,
 String units)

Sets the internal position of the given entity object. Note that depending on the object type, the position may be already calculated and set elsewhere in the update stage, so use with care.

Parameters:

object - The object in a focus view wrapper.

position - The position in the internal reference system and the given units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

setObjectPosition

void setObjectPosition(com.badlogic.ashley.core.Entity object,
 double[] position)

Sets the internal position of the given entity object. Note that depending on the object type, the position may be already calculated and set elsewhere in the update stage, so use with care.

Parameters:

object - The object entity.

position - The position in the internal reference system and internal units.

setObjectPosition

void setObjectPosition(com.badlogic.ashley.core.Entity object,
 double[] position,
 String units)

Sets the internal position of the given entity object. Note that depending on the object type, the position may be already calculated and set elsewhere in the update stage, so use with care.

Parameters:

object - The object entity.

position - The position in the internal reference system and the given units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

setObjectCoordinatesProvider

void setObjectCoordinatesProvider(String name,
 IPythonCoordinatesProvider provider)

Sets the coordinates provider for the object identified with the given name, if possible. The provider object must implement IPythonCoordinatesProvider, and in particular the method IPythonCoordinatesProvider.getEquatorialCartesianCoordinates(Object, Object), which takes in a julian date and outputs the object coordinates in the internal cartesian system.

Parameters:

name - The name of the object.

provider - The coordinate provider instance.

removeObjectCoordinatesProvider

void removeObjectCoordinatesProvider(String name)

Removes the current coordinates provider from the object with the given name. This method must be called before shutting down the gateway if the coordinates provider has been previously set for the given object from Python with setObjectCoordinatesProvider(String, IPythonCoordinatesProvider). Otherwise, Gaia Sky will crash due to the missing connection to Python.

Parameters:

name - The name of the object for which to remove the coordinate provider.

addTrajectoryLine

void addTrajectoryLine(String name,
 double[] points,
 double[] color)

Adds a new trajectory object with the given name, points and color. The trajectory is rendered using the 'line renderer' setting in the preferences dialog. This is a very similar call to addPolyline(String, double[], double[]), but in this case the line can be rendered with higher quality polyline quadstrips.

Parameters:

name - The name to identify the trajectory, to possibly remove it later.

points - The points of the trajectory. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn] in the internal reference system.

color - The color of the trajectory as an array of RGBA (red, green, blue, alpha) values in [0,1].

addTrajectoryLine

void addTrajectoryLine(String name,
 double[] points,
 double[] color,
 double trailMap)

Adds a new trajectory object with the given name, points and color. The trajectory is rendered using the 'line renderer' setting in the preferences dialog. This is a very similar call to addPolyline(String, double[], double[]), but in this case the line can be rendered with higher quality polyline quadstrips.

Parameters:

name - The name to identify the trajectory, to possibly remove it later.

points - The points of the trajectory. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn] in the internal reference system.

color - The color of the trajectory as an array of RGBA (red, green, blue, alpha) values in [0,1].

trailMap - The bottom mapping position for the trail. The orbit trail assigns an opacity value to each point of the orbit, where 1 is the location of the last point in the points list, and 0 is the first one. This mapping parameter defines the location in the orbit (in [0,1]) where we map the opacity value of 0. Set to 0 to have a full trail. Set to 0.5 to have a trail that spans half the orbit. Set to 1 to have no orbit at all. Set to negative to disable the trail.

addPolyline

void addPolyline(String name,
 double[] points,
 double[] color)

Adds a new polyline with the given name, points and color. The polyline will be created with the 'Others' component type, so you need to enable the visibility of 'Others' in order to see it. The default primitive of GL_LINE_STRIP is used.

Parameters:

name - The name to identify the polyline, to possibly remove it later.

points - The points of the polyline. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn] in the internal reference system.

color - The color of the polyline as an array of RGBA (red, green, blue, alpha) values in [0,1].

addPolyline

void addPolyline(String name,
 double[] points,
 double[] color,
 double lineWidth)

Adds a new polyline with the given name, points, color and line width. The polyline will be created with the 'Others' component type, so you need to enable the visibility of 'Others' in order to see it. The default primitive type of GL_LINE_STRIP is used.

Parameters:

name - The name to identify the polyline, to possibly remove it later.

points - The points of the polyline. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn].

color - The color of the polyline as an array of RGBA (red, green, blue, alpha) values in [0,1].

lineWidth - The line width. Usually a value between 1 (default) and 10.

addPolyline

void addPolyline(String name,
 double[] points,
 double[] color,
 double lineWidth,
 boolean arrowCaps)

Adds a new polyline with the given name, points, color and line width. The polyline will be created with the 'Others' component type, so you need to enable the visibility of 'Others' in order to see it. The default primitive type of GL_LINE_STRIP is used. This version enables the addition of arrow caps. In the case arrow caps are enabled, the line will be rendered in CPU mode (no VBO), making it slightly slower, especially for lines with many points. The arrow cap is added at the first point in the series.

Parameters:

name - The name to identify the polyline, to possibly remove it later.

points - The points of the polyline. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn].

color - The color of the polyline as an array of RGBA (red, green, blue, alpha) values in [0,1].

lineWidth - The line width. Usually a value between 1 (default) and 10.

arrowCaps - Whether to represent arrow caps. If enabled, the line is rendered in CPU mode, which is slower.

addPolyline

void addPolyline(String name,
 double[] points,
 double[] color,
 double lineWidth,
 int primitive)

Adds a new polyline with the given name, points, color, line width and primitive. The polyline will be created with the 'Others' component type, so you need to enable the visibility of 'Others' in order to see it.

Parameters:

name - The name to identify the polyline, to possibly remove it later.

points - The points of the polyline. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn].

color - The color of the polyline as an array of RGBA (red, green, blue, alpha) values in [0,1].

lineWidth - The line width. Usually a value between 1 (default) and 10.

primitive - The GL primitive: GL_LINES=1, GL_LINE_LOOP=2, GL_LINE_STRIP=3

addPolyline

void addPolyline(String name,
 double[] points,
 double[] color,
 double lineWidth,
 int primitive,
 boolean arrowCaps)

Adds a new polyline with the given name, points, color, line width, primitive and arrow caps. The polyline will be created with the 'Others' component type, so you need to enable the visibility of 'Others' in order to see it. This version enables the addition of arrow caps. In the case arrow caps are enabled, the line will be rendered in CPU mode (no VBO), making it slightly slower, especially for lines with many points. The arrow cap is added at the first point in the series.

Parameters:

name - The name to identify the polyline, to possibly remove it later.

points - The points of the polyline. It is an array containing all the points as in [x0, y0, z0, x1, y1, z1, ..., xn, yn, zn].

color - The color of the polyline as an array of RGBA (red, green, blue, alpha) values in [0,1].

lineWidth - The line width. Usually a value between 1 (default) and 10.

primitive - The GL primitive: GL_LINES=1, GL_LINE_LOOP=2, GL_LINE_STRIP=3

arrowCaps - Whether to represent arrow caps. If enabled, the line is rendered in CPU mode, which is slower.

removeModelObject

void removeModelObject(String name)

Removes the model object identified by the given name from the internal scene graph model of Gaia Sky, if it exists. If the object has children, they are removed recursively. Be careful with this function, as it can have unexpected side effects depending on what objects are removed. For example,

gs.removeModelObject("Earth")

removes the Earth, the Moon, Gaia and any dependent object from Gaia Sky.

Parameters:

name - The name of the object to remove.

setGuiScrollPosition

void setGuiScrollPosition(float pixelY)

Sets the vertical scroll position in the GUI.

Parameters:

pixelY - The pixel to set the scroll position to.

enableGui

void enableGui()

Enables the GUI rendering. This makes the user interface to be rendered and updated again if it was previously disabled. Otherwise, it has no effect.

disableGui

void disableGui()

Disables the GUI rendering. This causes the user interface to no longer be rendered or updated.

getGuiScaleFactor

float getGuiScaleFactor()

Gets the current scale factor applied to the UI.

Returns:

The scale factor.

maximizeInterfaceWindow

void maximizeInterfaceWindow()

Maximizes the interface window.

minimizeInterfaceWindow

void minimizeInterfaceWindow()

Minimizes the interface window.

setGuiPosition

void setGuiPosition(float x,
 float y)

Moves the interface window to a new position.

Parameters:

x - The new x coordinate of the new top-left corner of the window, in [0,1] from left to right.

y - The new y coordinate of the new top-left corner of the window, in [0,1] from bottom to top.

waitForInput

void waitForInput()

Blocks the execution until any kind of input (keyboard, mouse, etc.) is received.

waitForEnter

void waitForEnter()

Blocks the execution until the Enter key is pressed.

waitForInput

void waitForInput(int code)

Blocks the execution until the given key or button is pressed.

Parameters:

code - The key or button code. Please see Input.

getScreenWidth

int getScreenWidth()

Returns the screen width in pixels.

Returns:

The screen width in pixels.

getScreenHeight

int getScreenHeight()

Returns the screen height in pixels.

Returns:

The screen height in pixels.

getPositionAndSizeGui

float[] getPositionAndSizeGui(String name)

Returns the size and position of the GUI element that goes by the given name or null if such element does not exist. Warning> This will only work in asynchronous mode.

Parameters:

name - The name of the gui element.

Returns:

A vector of floats with the position (0, 1) of the bottom left corner in pixels from the bottom-left of the screen and the size (2, 3) in pixels of the element.

getVersionNumber

String getVersionNumber()

Returns the version number string.

Returns:

The version number string.

waitFocus

boolean waitFocus(String name,
 long timeoutMs)

Blocks the script until the focus is the object indicated by the name. There is an optional time out.

Parameters:

name - The name of the focus to wait for.

timeoutMs - Timeout in ms to wait. Set negative to disable timeout.

Returns:

True if the timeout ran out. False otherwise.

setCameraRecorderFps

void setCameraRecorderFps(double targetFps)

Sets the target frame rate of the camera recorder. This will cap the frame rate of Gaia Sky to this value while the camera is recording. When playing the camera file back, you are responsible to set the right frame rate.

Parameters:

targetFps - The target frame rate for the camera recorder.

startRecordingCameraPath

void startRecordingCameraPath()

Starts recording the camera path to an auto-generated file in the default camera directory. This command has no effect if the camera is already being recorded.

startRecordingCameraPath

void startRecordingCameraPath(String fileName)

Starts recording a camera path with the given filename. The filename is without extension or path. The final path with the camera file, after invoking stopRecordingCameraPath(), is:

getDefaultCameraDir() + "/" + filename + ".gsc"

This command has no effect if the camera is already being recorded.

stopRecordingCameraPath

void stopRecordingCameraPath()

Stops the current camera recording. This command has no effect if the camera was not being recorded.

runCameraRecording

void runCameraRecording(String file)

Runs the camera recording file with the given path. Does not wait for the camera file to finish playing.

Parameters:

file - The path of the camera file. Path is relative to the application's root directory or absolute.

runCameraPath

void runCameraPath(String file)

Runs a .gsc camera path file and returns immediately. This function does not wait for the camera file to finish playing.

Parameters:

file - The path to the camera file. Path is relative to the application's root directory or absolute.

playCameraPath

void playCameraPath(String file)

Alias for runCameraPath(String)

runCameraPath

void runCameraPath(String file,
 boolean sync)

Runs a .gsc camera path file and returns immediately. This function accepts a boolean indicating whether to wait for the camera path file to finish or not.

Parameters:

file - The path to the camera file. Path is relative to the application's root directory or absolute.

sync - If true, the call is synchronous and waits for the camera file to finish. Otherwise, it returns immediately.

playCameraPath

void playCameraPath(String file,
 boolean sync)

Alias for runCameraPath(String, boolean)

cameraTransition

void cameraTransition(double[] camPos,
 double[] camDir,
 double[] camUp,
 double seconds)

Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds. This function waits for the transition to finish and then returns control to the script. This function will put the camera in free mode, so make sure to change it afterwards if you need to. Also, this only works with the natural camera.

Parameters:

camPos - The target camera position in the internal reference system.

camDir - The target camera direction in the internal reference system.

camUp - The target camera up in the internal reference system.

seconds - The duration of the transition in seconds.

cameraTransition

void cameraTransition(double[] camPos,
 String units,
 double[] camDir,
 double[] camUp,
 double seconds)

Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds. This function waits for the transition to finish and then returns control to the script. This function will put the camera in free mode, so make sure to change it afterward if you need to. Also, this only works with the natural camera.

Parameters:

camPos - The target camera position in the internal reference system and the given distance units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

camDir - The target camera direction in the internal reference system.

camUp - The target camera up in the internal reference system.

seconds - The duration of the transition in seconds.

cameraTransitionKm

void cameraTransitionKm(double[] camPos,
 double[] camDir,
 double[] camUp,
 double seconds)

Same as cameraTransition(double[], double[], double[], double) but the camera position is given in Km.

Parameters:

camPos - The target camera position in Km.

camDir - The target camera direction vector.

camUp - The target camera up vector.

seconds - The duration of the transition in seconds.

cameraTransition

void cameraTransition(double[] camPos,
 double[] camDir,
 double[] camUp,
 double seconds,
 boolean sync)

Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds. Optionally, the transition may be run synchronously or asynchronously to the current script. This function will put the camera in free mode, so make sure to change it afterward if you need to. Also, this only works with the natural camera.

Parameters:

camPos - The target camera position in the internal reference system.

camDir - The target camera direction in the internal reference system.

camUp - The target camera up in the internal reference system.

seconds - The duration of the transition in seconds.

sync - If true, the call waits for the transition to finish before returning, otherwise it returns immediately

cameraTransition

void cameraTransition(double[] camPos,
 String units,
 double[] camDir,
 double[] camUp,
 double seconds,
 boolean sync)

Creates a smooth transition from the current camera state to the given camera state {camPos, camDir, camUp} in the given number of seconds. Optionally, the transition may be run synchronously or asynchronously to the current script. This function will put the camera in free mode, so make sure to change it afterward if you need to. Also, this only works with the natural camera.

Parameters:

camPos - The target camera position in the internal reference system and the given distance units.

units - The distance units to use. One of "m", "km", "au", "ly", "pc", "internal".

camDir - The target camera direction in the internal reference system.

camUp - The target camera up in the internal reference system.

seconds - The duration of the transition in seconds.

sync - If true, the call waits for the transition to finish before returning, otherwise it returns immediately

sleep

void sleep(float seconds)

Sleeps for the given number of seconds in the application time (FPS), so if we are capturing frames and the frame rate is set to 30 FPS, the command sleep(1) will put the script to sleep for 30 frames.

Parameters:

seconds - The number of seconds to wait.

sleepFrames

void sleepFrames(long frames)

Sleeps for a number of frames. The frame monitor is notified at the beginning of each frame, before the update-render cycle. When frames is 1, this method returns just before the processing of the next frame starts.

Parameters:

frames - The number of frames to wait.

expandGuiComponent

void expandGuiComponent(String name)

Expands the component with the given name.

Parameters:

name - The name, as in `CameraComponent` or `ObjectsComponent`

collapseGuiComponent

void collapseGuiComponent(String name)

Collapses the component with the given name.

Parameters:

name - The name, as in `CameraComponent` or `ObjectsComponent`

galacticToInternalCartesian

double[] galacticToInternalCartesian(double l,
 double b,
 double r)

Converts galactic coordinates to the internal cartesian coordinate system.

Parameters:

l - The galactic longitude in degrees.

b - The galactic latitude in degrees.

r - The distance in Km.

Returns:

An array of doubles containing [x, y, z] in the internal reference system, in internal units.

eclipticToInternalCartesian

double[] eclipticToInternalCartesian(double l,
 double b,
 double r)

Converts ecliptic coordinates to the internal cartesian coordinate system.

Parameters:

l - The ecliptic longitude in degrees.

b - The ecliptic latitude in degrees.

r - The distance in Km.

Returns:

An array of doubles containing [x, y, z] in the internal reference system, in internal units.

equatorialToInternalCartesian

double[] equatorialToInternalCartesian(double ra,
 double dec,
 double r)

Converts equatorial coordinates to the internal cartesian coordinate system.

Parameters:

ra - The right ascension in degrees.

dec - The declination in degrees.

r - The distance in Km.

Returns:

An array of doubles containing [x, y, z] in the internal reference system, in internal units.

internalCartesianToEquatorial

double[] internalCartesianToEquatorial(double x,
 double y,
 double z)

Converts internal cartesian coordinates to equatorial [ra, dec, distance] coordinates.

Parameters:

x - The x component, in any distance units.

y - The y component, in any distance units.

z - The z component, in any distance units.

Returns:

An array of doubles containing [ra, dec, distance] with ra and dec in degrees and distance in the same distance units as the input position.

equatorialCartesianToInternalCartesian

double[] equatorialCartesianToInternalCartesian(double[] eq,
 double kmFactor)

Converts regular cartesian coordinates, where XY is the equatorial plane, with X pointing to the vernal equinox (ra=0) and Y points to ra=90, and Z pointing to the celestial north pole (dec=90) to internal cartesian coordinates with internal units.

Parameters:

eq - Equatorial cartesian coordinates (X->[ra=0,dec=0], Y->[ra=90,dec=0], Z->[ra=0,dec=90])

kmFactor - Factor used to bring the input coordinate units to Kilometers, so that eq * factor = Km

Returns:

Internal coordinates ready to be fed in other scripting functions

equatorialToGalactic

double[] equatorialToGalactic(double[] eq)

Converts equatorial cartesian coordinates (in the internal reference system) to galactic cartesian coordinates.

Parameters:

eq - Vector with [x, y, z] equatorial cartesian coordinates

Returns:

Vector with [x, y, z] galactic cartesian coordinates

equatorialToEcliptic

double[] equatorialToEcliptic(double[] eqInternal)

Converts equatorial cartesian coordinates (in the internal reference system) to ecliptic cartesian coordinates.

Parameters:

eqInternal - Vector with [x, y, z] equatorial cartesian coordinates

Returns:

Vector with [x, y, z] ecliptic cartesian coordinates

galacticToEquatorial

double[] galacticToEquatorial(double[] galInternal)

Converts galactic cartesian coordinates (in the internal reference system) to equatorial cartesian coordinates.

Parameters:

galInternal - Vector with [x, y, z] galactic cartesian coordinates

Returns:

Vector with [x, y, z] equatorial cartesian coordinates

eclipticToEquatorial

double[] eclipticToEquatorial(double[] eclInternal)

Converts ecliptic cartesian coordinates (in the internal reference system) to equatorial cartesian coordinates.

Parameters:

eclInternal - Vector with [x, y, z] ecliptic cartesian coordinates

Returns:

Vector with [x, y, z] equatorial cartesian coordinates

setBrightnessLevel

void setBrightnessLevel(double level)

Sets the brightness level of the render system.

Parameters:

level - The brightness level as a double precision floating point number in [-1,1]. The neutral value is 0.0.

setContrastLevel

void setContrastLevel(double level)

Sets the contrast level of the render system.

Parameters:

level - The contrast level as a double precision floating point number in [0,2]. The neutral value is 1.0.

setHueLevel

void setHueLevel(double level)

Sets the hue level of the render system.

Parameters:

level - The hue level as a double precision floating point number in [0,2]. The neutral value is 1.0.

setSaturationLevel

void setSaturationLevel(double level)

Sets the saturation level of the render system.

Parameters:

level - The saturation level as a double precision floating point number in [0,2]. The neutral value is 1.0.

setGammaCorrectionLevel

void setGammaCorrectionLevel(double level)

Sets the gamma correction level.

Parameters:

level - The gamma correction level in [0,3] as a floating point number. The neutral value is 1.2.

setHDRToneMappingType

void setHDRToneMappingType(String type)

Sets the high dynamic range tone mapping algorithm type. The types can be:

• "auto" - performs an automatic HDR tone mapping based on the current luminosity of the scene
• "exposure" - performs an exposure-based HDR tone mapping. The exposure value must be set with setExposureToneMappingLevel(double)
• "aces" - performs the ACES tone mapping
• "uncharted" - performs the tone mapping implemented in Uncharted
• "filmic" - performs a filmic tone mapping
• "none" - no HDR tone mapping

Parameters:

type - The HDR tone mapping type. One of ["auto"|"exposure"|"aces"|"uncharted"|"filmic"|"none"].

setExposureToneMappingLevel

void setExposureToneMappingLevel(double level)

Sets the exposure level.

Parameters:

level - The exposure level in [0,n]. Set to 0 to disable exposure tone mapping.

setPlanetariumMode

void setPlanetariumMode(boolean state)

Enables or disables the planetarium mode.

Parameters:

state - The boolean state. True to activate, false to deactivate.

setCubemapMode

void setCubemapMode(boolean state,
 String projection)

Enables and disables the cubemap mode.

Parameters:

state - The boolean state. True to activate, false to deactivate.

projection - The projection as a string.

setPanoramaMode

void setPanoramaMode(boolean state)

Enables or disables the panorama mode.

Parameters:

state - The boolean state. True to activate, false to deactivate.

setCubemapResolution

void setCubemapResolution(int resolution)

Sets the resolution (width and height are the same) of each side of the frame buffers used to capture each of the 6 directions that go into the cubemap to construct the equirectangular image for the 360 mode. This should roughly be 1/3 of the output resolution at which the 360 mode are to be captured (or screen resolution).

Parameters:

resolution - The resolution of each of the sides of the cubemap for the 360 mode.

setCubemapProjection

void setCubemapProjection(String projection)

Sets the cubemap projection to use. Accepted values are:

• "equirectangular" - spherical projection.
• "cylindrical" - cylindrical projection.
• "hammer" - Hammer projection.
• "orthographic" - orthographic projection, with the two hemispheres side-by-side.
• "orthosphere" - orthographic projection, with the two hemispheres overlaid. That gives an outside view of the camera's celestial sphere.
• "orthosphere_crosseye" - same as orthosphere, but duplicated to produce a stereoscopic cross-eye image (side by side).
• "azimuthal_equidistant" - azimuthal equidistant projection, used in Planetarium mode.

See CubmeapProjectionEffect for possible values.

Parameters:

projection - The projection, in ["equirectangular"|"cylindrical"|"hammer"|"orthographic"|"orthosphere"|"orthosphere_crossye"|"azimuthal_equidistant"].

setOrthosphereViewMode

void setOrthosphereViewMode(boolean state)

Enables or disables the orthosphere view mode.

Parameters:

state - The state, true to activate and false to deactivate.

setIndexOfRefraction

void setIndexOfRefraction(float ior)

Sets index of refraction of celestial sphere in orthosphere view mode.

Parameters:

ior - The index of refraction.

setStereoscopicMode

void setStereoscopicMode(boolean state)

Enables and disables the stereoscopic mode.

Parameters:

state - The boolean state. True to activate, false to deactivate.

setStereoscopicProfile

void setStereoscopicProfile(int index)

Changes the stereoscopic profile.

Parameters:

index - The index of the new profile:

• 0 - VR_HEADSET
• 1 - HD_3DTV
• 2 - CROSSEYE
• 3 - PARALLEL_VIEW
• 4 - ANAGLYPHIC (red-cyan)

setReprojectionMode

void setReprojectionMode(String mode)

Sets the re-projection mode. Possible modes are:

• "disabled"
• "default"
• "accurate"
• "stereographic_screen"
• "stereographic_long"
• "stereographic_short"
• "stereographic_180"
• "lambert_screen"
• "lambert_long"
• "lambert_short"
• "lambert_180"
• "orthographic_screen"
• "orthographic_long"
• "orthographic_short"
• "orthographic_180"

Parameters:

mode - The re-projection mode, as a string.

setBackBufferScale

void setBackBufferScale(float scale)

Sets the scaling factor for the back-buffer.

Parameters:

scale - The back-buffer scaling factor.

getCurrentFrameNumber

long getCurrentFrameNumber()

Gets the current frame number. Useful for timing actions in scripts.

Returns:

The current frame number.

setLensFlare

void setLensFlare(boolean state)

Enables or disables the lens flare effect.

Parameters:

state - Activate (true) or deactivate (false).

setLensFlare

void setLensFlare(double strength)

Sets the strength of the lens flare effect, in [0,1]. Set to 0 to disable the effect.

Parameters:

strength - The strength or intensity of the lens flare, in [0,1].

setMotionBlur

void setMotionBlur(boolean state)

Enables or disables the motion blur effect.

Parameters:

state - Activate (true) or deactivate (false).

setStarGlow

@Deprecated
void setStarGlow(boolean state)

Deprecated.

Use setStarGlowOverObjects(boolean) instead.

Enables or disables the stars glowing over objects.

Parameters:

state - Activate (true) or deactivate (false).

setStarGlowOverObjects

void setStarGlowOverObjects(boolean state)

Enables or disables stars' light glowing and spilling over closer objects.

Parameters:

state - Enable (true) or disable (false).

setBloom

void setBloom(float value)

Sets the strength value for the bloom effect.

Parameters:

value - Bloom strength between 0 and 100. Set to 0 to deactivate the bloom.

setChromaticAberration

void setChromaticAberration(float value)

Sets the amount of chromatic aberration. Set to 0 to disable the effect.

Parameters:

value - Chromatic aberration amount in [0,0.05].

setSmoothLodTransitions

void setSmoothLodTransitions(boolean value)

Sets the value of smooth lod transitions, allowing or disallowing octant fade-ins of as they come into view.

Parameters:

value - Activate (true) or deactivate (false).

resetImageSequenceNumber

void resetImageSequenceNumber()

Resets to zero the image sequence number used to generate the file names of the frame output images.

getDefaultFramesDir

String getDefaultFramesDir()

Gets the absolute path of the default directory where the still frames are saved.

Returns:

Absolute path of directory where still frames are saved.

getDefaultScreenshotsDir

String getDefaultScreenshotsDir()

Gets the absolute path of the default directory where the screenshots are saved.

Returns:

Absolute path of directory where screenshots are saved.

getDefaultCameraDir

String getDefaultCameraDir()

Gets the absolute path of the default directory where the camera files are saved.

Returns:

Absolute path of directory where camera files are saved.

getDefaultMusicDir

String getDefaultMusicDir()

Gets the absolute path to the location of the music files

Returns:

Absolute path to the location of the music files

getDefaultMappingsDir

String getDefaultMappingsDir()

Gets the absolute path to the location of the inputListener mappings.

Returns:

Absolute path to the location of the inputListener mappings.

getDataDir

String getDataDir()

Gets the absolute path of the local data directory, configured in your config.yaml file.

Returns:

Absolute path to the location of the data files.

getConfigDir

String getConfigDir()

Gets the absolute path to the location of the configuration directory

Returns:

Absolute path of config directory.

getLocalDataDir

String getLocalDataDir()

Returns the default data directory. That is ~/.gaiasky/ in Windows and macOS, and ~/.local/share/gaiasky in Linux.

Returns:

Absolute path of data directory.

postRunnable

void postRunnable(Runnable runnable)

Posts a Runnable to the main loop thread that runs once after the update-scene stage, and before the render stage.

Parameters:

runnable - The runnable to run.

parkRunnable

void parkRunnable(String id,
 Runnable runnable)

See parkSceneRunnable(String, Runnable).

parkSceneRunnable

void parkSceneRunnable(String id,
 Runnable runnable)

Parks an update Runnable to the main loop thread, and keeps it running every frame until it finishes or it is unparked by unparkRunnable(String). This object runs after the update-scene stage and before the render stage, so it is intended for updating scene objects.

Be careful with this function, as it probably needs a cleanup before the script is finished. Otherwise, all parked runnables will keep running until Gaia Sky is restarted, so make sure to remove them with unparkRunnable(String) if needed.

Parameters:

id - The string id to identify the runnable.

runnable - The scene update runnable to park.

parkCameraRunnable

void parkCameraRunnable(String id,
 Runnable runnable)

Parks a camera update Runnable to the main loop thread, and keeps it running every frame until it finishes or it is unparked by unparkRunnable(String). This object runs after the update-camera stage and before the update-scene, so it is intended for updating the camera only.

Be careful with this function, as it probably needs a cleanup before the script is finished. Otherwise, all parked runnables will keep running until Gaia Sky is restarted, so make sure to remove them with unparkRunnable(String) if needed.

Parameters:

id - The string id to identify the runnable.

runnable - The camera update runnable to park.

removeRunnable

void removeRunnable(String id)

Removes the runnable with the given id, if any. Use this method to remove previously parked scene and camera runnables.

Parameters:

id - The id of the runnable to remove.

unparkRunnable

@Deprecated
void unparkRunnable(String id)

Deprecated.

Use removeRunnable(String).

Removes the runnable with the given id, if any.

Parameters:

id - The id of the runnable to remove.

loadDataset

boolean loadDataset(String dsName,
 String path)

Loads a VOTable, FITS, CSV or JSON dataset file with the given name. In this version, the loading happens synchronously, so the catalog is available to Gaia Sky immediately after this call returns. The actual loading process is carried out making educated guesses about semantics using UCDs and column names. Please check the official documentation for a complete reference on what can and what can't be loaded.

Parameters:

dsName - The name of the dataset, used to identify the subsequent operations on the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot file to load.

Returns:

False if the dataset could not be loaded, true otherwise.

loadDataset

boolean loadDataset(String dsName,
 String path,
 boolean sync)

Loads a VOTable, FITS, CSV or JSON dataset file with the given name. The call can be made synchronous or asynchronous.
If sync is true, the call acts exactly like loadDataset(String, String).
If sync is false, the loading happens in a new thread and the call returns immediately. In this case, you can use hasDataset(String) to check whether the dataset is already loaded and available. The actual loading process is carried out making educated guesses about semantics using UCDs and column names. Please check the official documentation for a complete reference on what can and what can't be loaded.

Parameters:

dsName - The name of the dataset, used to identify the subsequent operations on the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the file to load.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadDataset

boolean loadDataset(String dsName,
 String path,
 CatalogInfo.CatalogInfoSource type,
 DatasetOptions options,
 boolean sync)

Loads a VOTable, FITS, CSV or JSON dataset file with the given name. The call can be made synchronous or asynchronous.
If sync is true, the call acts exactly like loadDataset(String, String, boolean).
If sync is false, the loading happens in a new thread and the call returns immediately. In this case, you can use hasDataset(String) to check whether the dataset is already loaded and available. The actual loading process is carried out making educated guesses about semantics using UCDs and column names. Please check the official documentation for a complete reference on what can and what can't be loaded. This version includes the catalog info type.

Parameters:

dsName - The name of the dataset, used to identify the subsequent operations on the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the file to load.

type - The CatalogInfo.CatalogInfoSource object to use as the dataset type.

options - The DatasetOptions object holding the options for this dataset.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarDataset

boolean loadStarDataset(String dsName,
 String path,
 boolean sync)

Loads a star dataset from a VOTable, a CSV or a FITS file. The dataset does not have a label. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarDataset

boolean loadStarDataset(String dsName,
 String path,
 double magnitudeScale,
 boolean sync)

Loads a star dataset from a VOTable, a CSV or a FITS file. The dataset does not have a label. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

magnitudeScale - Scaling additive factor to apply to the star magnitudes, as in appmag = appmag - magnitudeScale.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarDataset

boolean loadStarDataset(String dsName,
 String path,
 double magnitudeScale,
 double[] labelColor,
 boolean sync)

Loads a star dataset from a VOTable, a CSV or a FITS file. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

magnitudeScale - Scaling additive factor to apply to the star magnitudes, as in appmag = appmag - magnitudeScale.

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarDataset

boolean loadStarDataset(String dsName,
 String path,
 double magnitudeScale,
 double[] labelColor,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a star dataset from a VOTable, a CSV or a FITS file. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

magnitudeScale - Scaling additive factor to apply to the star magnitudes, as in appmag = appmag - magnitudeScale.

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadParticleDataset

boolean loadParticleDataset(String dsName,
 String path,
 double profileDecay,
 double[] particleColor,
 double colorNoise,
 double[] labelColor,
 double particleSize,
 String ct,
 boolean sync)

Loads a particle dataset (point cloud) from a VOTable, a CSV or a FITS file. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

profileDecay - The profile decay of the particles as in 1 - distCentre^decay.

particleColor - The base color of the particles, as an array of RGBA (red, green, blue, alpha) values in [0,1].

colorNoise - In [0,1], the noise to apply to the color so that each particle gets a slightly different tone. Set to 0 so that all particles get the same color.

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

particleSize - The size of the particles in pixels.

ct - The name of the component type to use like "Stars", "Galaxies", etc. (see ComponentTypes.ComponentType).

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadParticleDataset

boolean loadParticleDataset(String dsName,
 String path,
 double profileDecay,
 double[] particleColor,
 double colorNoise,
 double[] labelColor,
 double particleSize,
 String ct,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a particle dataset (point cloud) from a VOTable, a CSV or a FITS file. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

profileDecay - The profile decay of the particles as in 1 - distCentre^decay.

particleColor - The base color of the particles, as an array of RGBA (red, green, blue, alpha) values in [0,1].

colorNoise - In [0,1], the noise to apply to the color so that each particle gets a slightly different tone. Set to 0 so that all particles get the same color.

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

particleSize - The size of the particles in pixels.

ct - The name of the component type to use like "Stars", "Galaxies", etc. (see ComponentTypes.ComponentType).

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadParticleDataset

boolean loadParticleDataset(String dsName,
 String path,
 double profileDecay,
 double[] particleColor,
 double colorNoise,
 double[] labelColor,
 double particleSize,
 double[] particleSizeLimits,
 String ct,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a particle dataset (point cloud) from a VOTable, a CSV or a FITS file. The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

profileDecay - The profile decay of the particles as in 1 - distCentre^decay.

particleColor - The base color of the particles, as an array of RGBA (red, green, blue, alpha) values in [0,1].

colorNoise - In [0,1], the noise to apply to the color so that each particle gets a slightly different tone. Set to 0 so that all particles get the same color.

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

particleSize - The size of the particles in pixels.

particleSizeLimits - The minimum and maximum size of the particles in pixels.

ct - The name of the component type to use like "Stars", "Galaxies", etc. (see ComponentTypes.ComponentType).

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarClusterDataset

boolean loadStarClusterDataset(String dsName,
 String path,
 double[] particleColor,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a star cluster dataset from a CSV, VOTable or FITS file. The file needs the columns with the following names: name, ra, dec, dist, pmra, pmdec, radius, radvel. Uses the same color for clusters and labels. The call can be made synchronous or asynchronous. If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

particleColor - The base color of the particles and labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarClusterDataset

boolean loadStarClusterDataset(String dsName,
 String path,
 double[] particleColor,
 double[] labelColor,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a star cluster dataset from a CSV, VOTable or FITS file. The file needs the columns with the following names: name, ra, dec, dist, pmra, pmdec, radius, radvel. The call can be made synchronous or asynchronous. If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

particleColor - The base color of the particles, as an array of RGBA (red, green, blue, alpha) values in [0,1].

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarClusterDataset

boolean loadStarClusterDataset(String dsName,
 String path,
 double[] particleColor,
 String ct,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a star cluster dataset from a CSV, VOTable or FITS file. The file needs the columns with the following names: name, ra, dec, dist, pmra, pmdec, radius, radvel. Uses the same color for clusters and labels. The call can be made synchronous or asynchronous. If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

particleColor - The base color of the particles and labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

ct - The name of the component type to use (see ComponentTypes.ComponentType).

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadStarClusterDataset

boolean loadStarClusterDataset(String dsName,
 String path,
 double[] particleColor,
 double[] labelColor,
 String ct,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a star cluster dataset from a CSV, VOTable or FITS file. The file needs the columns with the following names: name, ra, dec, dist, pmra, pmdec, radius, radvel. The call can be made synchronous or asynchronous. If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

particleColor - The base color of the particles and labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

ct - The name of the component type to use (see ComponentTypes.ComponentType).

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadVariableStarDataset

boolean loadVariableStarDataset(String dsName,
 String path,
 double magnitudeScale,
 double[] labelColor,
 double[] fadeIn,
 double[] fadeOut,
 boolean sync)

Loads a variable star dataset from a VOTable, CSV or FITS file. The variable star table must have the following columns representing the light curve:

• g_transit_time: list of times as Julian days since J2010 for each of the magnitudes
• g_transit_mag: list of magnitudes corresponding to the times in g_transit_times
• pf: the period in days

The call can be made synchronous or asynchronous.
If sync is true, the call waits until the dataset is loaded and then returns. If sync is false, the loading happens in a new thread and the call returns immediately. It includes some parameters to apply to the new star group.

Parameters:

dsName - The name of the dataset.

path - Absolute path (or relative to the working path of Gaia Sky) to the .vot, .csv or .fits file to load.

magnitudeScale - Scaling additive factor to apply to the magnitudes in the light curve, as in appmag = appmag - magnitudeScale.

labelColor - The color of the labels, as an array of RGBA (red, green, blue, alpha) values in [0,1].

fadeIn - Two values which represent the fade in mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

fadeOut - Two values which represent the fade out mapping distances (in parsecs, as distance from camera to the Sun) of this dataset. Set to null to disable.

sync - Whether the load must happen synchronously or asynchronously.

Returns:

False if the dataset could not be loaded (sync mode). True if it could not be loaded (sync mode), or sync is false.

loadJsonCatalog

boolean loadJsonCatalog(String dsName,
 String path)

Loads a Gaia Sky JSON dataset file asynchronously. The call returns immediately, and the dataset becomes available when it finished loading. The Gaia Sky JSON data format is described here.

Parameters:

dsName - The name of the dataset.

path - The absolute path, or the path in the data directory, of the dataset file.

Returns:

False if the dataset could not be loaded. True otherwise.

loadJsonDataset

boolean loadJsonDataset(String dsName,
 String path)

Loads a JSON Gaia Sky dataset file asynchronously. The call returns immediately, and the dataset becomes available when it finished loading. The Gaia Sky JSON data format is described here.

Parameters:

dsName - The name of the dataset.

path - The absolute path, or the path in the data directory, of the dataset file.

Returns:

False if the dataset could not be loaded. True otherwise.

loadJsonDataset

boolean loadJsonDataset(String dsName,
 String path,
 boolean sync)

Loads a Gaia Sky JSON dataset file in a synchronous or asynchronous manner. The Gaia Sky JSON data format is described here.

Parameters:

dsName - The name of the dataset.

path - The absolute path, or the path in the data directory, of the dataset file.

sync - If true, the call does not return until the dataset is loaded and available in Gaia Sky.

Returns:

False if the dataset could not be loaded. True otherwise.

removeDataset

boolean removeDataset(String dsName)

Removes the dataset identified by the given name, if it exists.

Parameters:

dsName - The name of the dataset to remove.

Returns:

False if the dataset could not be found.

hideDataset

boolean hideDataset(String dsName)

Hides the dataset identified by the given name, if it exists and is not hidden.

Parameters:

dsName - The name of the dataset to hide.

Returns:

False if the dataset could not be found.

listDatasets

List<String> listDatasets()

Returns the names of all datasets currently loaded.

Returns:

A list with all the names of the loaded datasets.

hasDataset

boolean hasDataset(String dsName)

Checks whether the dataset identified by the given name is loaded

Parameters:

dsName - The name of the dataset to query.

Returns:

True if the dataset is loaded, false otherwise.

showDataset

boolean showDataset(String dsName)

Shows (un-hides) the dataset identified by the given name, if it exists and is hidden

Parameters:

dsName - The name of the dataset to show.

Returns:

False if the dataset could not be found.

highlightDataset

boolean highlightDataset(String dsName,
 int colorIndex,
 boolean highlight)

Enables or disables the dataset highlight, using a plain color given by the color index:

• 0 - blue
• 1 - red
• 2 - yellow
• 3 - green
• 4 - pink
• 5 - orange
• 6 - purple
• 7 - brown
• 8 - magenta

Parameters:

dsName - The dataset name.

colorIndex - Color index in [0,8].

highlight - Whether to highlight or not.

Returns:

False if the dataset could not be found.

highlightDataset

boolean highlightDataset(String dsName,
 boolean highlight)

Enables or disables the dataset highlight using a plain color chosen by the system.

Parameters:

dsName - The dataset name.

highlight - State.

Returns:

False if the dataset could not be found.

highlightDataset

boolean highlightDataset(String dsName,
 float r,
 float g,
 float b,
 float a,
 boolean highlight)

Enables or disables the dataset highlight, using a given plain color.

Parameters:

dsName - The dataset name.

r - Red component.

highlight - State.

Returns:

False if the dataset could not be found.

highlightDataset

boolean highlightDataset(String dsName,
 String attributeName,
 String colorMap,
 double minMap,
 double maxMap,
 boolean highlight)

Enables or disables the dataset highlight, using the given color map on the given attribute with the given maximum and minimum mapping values.

Parameters:

dsName - The dataset name.

attributeName - The attribute name. You can use basic attributes (please mind the case!):

• RA
• DEC
• Distance
• GalLatitude
• GalLongitude
• EclLatitude
• EclLongitude

Or star-only attributes (if your dataset contains stars, mind the case!):

• Mualpha
• Mudelta
• Radvel
• Absmag
• Appmag

Or even extra attributes (if you loaded the dataset yourself), matching by column name.

colorMap - The color map to use, in ["reds"|"greens"|"blues"|"rainbow18"|"rainbow"|"seismic"|"carnation"|"hotmeal"|"cool"].

minMap - The minimum mapping value.

maxMap - The maximum mapping value.

highlight - State.

Returns:

False if the dataset could not be found.

setDatasetHighlightSizeFactor

boolean setDatasetHighlightSizeFactor(String dsName,
 float sizeFactor)

Sets the size increase factor of this dataset when highlighted.

Parameters:

dsName - The dataset name.

sizeFactor - The size factor to apply to the particles when highlighted, must be in [Constants.MIN_DATASET_SIZE_FACTOR, Constants.MAX_DATASET_SIZE_FACTOR].

Returns:

False if the dataset could not be found.

setDatasetHighlightAllVisible

boolean setDatasetHighlightAllVisible(String dsName,
 boolean allVisible)

Sets the 'all visible' property of datasets when highlighted. If set to true, all stars in the dataset have an increased minimum opacity when highlighted, so that they are all visible. Otherwise, stars retain their minimum opacity and base brightness.

Parameters:

dsName - The dataset name.

allVisible - Whether all stars in the dataset should be visible when highlighted or not.

Returns:

False if the dataset could not be found.

setDatasetPointSizeMultiplier

void setDatasetPointSizeMultiplier(String dsName,
 double multiplier)

Sets the dataset point size multiplier.

Parameters:

dsName - The dataset name.

multiplier - The multiplier, as a positive floating point number.

addShapeAroundObject

void addShapeAroundObject(String shapeName,
 String shape,
 String primitive,
 double size,
 String objectName,
 float r,
 float g,
 float b,
 float a,
 boolean showLabel,
 boolean trackObject)

Creates a shape object of the given type with the given size around the object with the given name.

Parameters:

shapeName - The name of the shape object.

shape - The shape type, one of

• sphere
• icosphere
• octahedronsphere
• ring
• cylinder
• cone

primitive - The primitive to use, one of

• lines
• triangles

. Use 'lines' to create a wireframe shape, use 'triangles' for a solid shape.

size - The size of the object in kilometers.

objectName - The name of the object to use as the position.

r - The red component of the color in [0,1].

g - The green component of the color in [0,1].

b - The blue component of the color in [0,1].

a - The alpha component of the color in [0,1].

showLabel - Whether to show a label with the name of the shape.

trackObject - Whether to track the object if/when it moves.

setMaximumSimulationTime

void setMaximumSimulationTime(long years)

Sets the maximum simulation time allowed, in years. This sets the maximum time in the future (years) and in the past (-years). This setting is not saved to the configuration and resets to 5 Myr after restart.

Parameters:

years - The maximum year number to allow.

getMeterToInternalUnitConversion

double getMeterToInternalUnitConversion()

Returns the meter to internal unit conversion factor. Use this factor to multiply your coordinates in meters to get them in internal units.

Returns:

The factor M_TO_U.

getInternalUnitToMeterConversion

double getInternalUnitToMeterConversion()

Returns the internal unit to meter conversion factor. Use this factor to multiply your coordinates in internal units to get them in meters.

Returns:

The factor U_TO_M.

internalUnitsToMetres

double internalUnitsToMetres(double internalUnits)

Converts the value in internal units to metres.

Parameters:

internalUnits - The value in internal units.

Returns:

The value in metres.

internalUnitsToKilometres

double internalUnitsToKilometres(double internalUnits)

Converts the value in internal units to Kilometers.

Parameters:

internalUnits - The value in internal units.

Returns:

The value in Kilometers.

internalUnitsToKilometres

double[] internalUnitsToKilometres(double[] internalUnits)

Converts the array in internal units to Kilometers.

Parameters:

internalUnits - The array in internal units.

Returns:

The array in Kilometers.

internalUnitsToParsecs

double internalUnitsToParsecs(double internalUnits)

Converts the value in internal units to parsecs.

Parameters:

internalUnits - The value in internal units.

Returns:

The value in parsecs.

internalUnitsToParsecs

double[] internalUnitsToParsecs(double[] internalUnits)

Converts the array in internal units to parsecs.

Parameters:

internalUnits - The array in internal units.

Returns:

The array in parsecs.

metresToInternalUnits

double metresToInternalUnits(double metres)

Converts the metres to internal units.

Parameters:

metres - The value in metres.

Returns:

The value in internal units.

kilometresToInternalUnits

double kilometresToInternalUnits(double kilometres)

Converts the kilometres to internal units.

Parameters:

kilometres - The value in kilometers.

Returns:

The value in internal units.

parsecsToInternalUnits

double parsecsToInternalUnits(double parsecs)

Converts the parsecs to internal units.

Parameters:

parsecs - The value in parsecs.

Returns:

The value in internal units.

getFrameNumber

long getFrameNumber()

Gets the current frame number. The number begins at 0 for the first frame produced when Gaia Sky is started and increases continuously.

Returns:

The current frame number.

rotate3

double[] rotate3(double[] vector,
 double[] axis,
 double angle)

Rotates a 3D vector around the given axis by the specified angle in degrees. Vectors are arrays with 3 components. If more components are there, they are ignored.

Parameters:

vector - Vector to rotate, with at least 3 components.

axis - The axis, with at least 3 components.

angle - Angle in degrees.

Returns:

The new vector, rotated.

rotate2

double[] rotate2(double[] vector,
 double angle)

Rotates a 2D vector by the specified angle in degrees, counter-clockwise assuming that the y axis points up.

Parameters:

vector - Vector to rotate, with at least 2 components.

Returns:

The new vector, rotated.

cross3

double[] cross3(double[] vec1,
 double[] vec2)

Computes the cross product between the two 3D vectors.

Parameters:

vec1 - First 3D vector.

vec2 - Second 3D vector.

Returns:

Cross product 3D vector.

dot3

double dot3(double[] vec1,
 double[] vec2)

Computes the dot product between the two 3D vectors.

Parameters:

vec1 - First 3D vector.

vec2 - Second 3D vector.

Returns:

The dot product scalar.

print

void print(String message)

Print text using the internal logging system.

Parameters:

message - The message.

log

void log(String message)

Print text using the internal logging system.

Parameters:

message - The message.

error

void error(String message)

Log an error using the internal logging system.

Parameters:

message - The error message.

quit

void quit()

Initiates the quit action to terminate the program.